On Isosceles Sets in the 4-Dimensional Euclidean Space

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td align="left"></td><td align="center"> The number of points satisfying (i)</td><td align="center"> The number of points satisfying (ii)</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td align="left"><span style="width: 22.325001px;"><svg height="14.85" id="M1607" style="vertical-align:-2.22495pt" version="1.1" viewbox="0 0 22.325001 14.85" width="22.325001" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,12.012)"><path d="M360 -163h-62l-192 430v6l192 430h62l-193 -433z" id="x27E8"></path></g><g transform="matrix(.017,-0,0,-.017,7.083,12.012)"><path d="M384 0h-275v27q67 5 81.5 18.5t14.5 68.5v385q0 38 -7.5 47.5t-40.5 10.5l-48 2v24q85 15 178 52v-521q0 -55 14.5 -68.5t82.5 -18.5v-27z" id="x31"></path></g><g transform="matrix(.017,-0,0,-.017,15.242,12.012)"><path d="M307 267l-192 -430h-62l193 433l-193 433h62l192 -430v-6z" id="x27E9"></path></g>
</svg></span></td><td align="center"> 0</td><td align="center"> 7</td></tr><tr><td align="left"><span style="width: 22.325001px;"><svg height="14.85" id="M1608" style="vertical-align:-2.22495pt" version="1.1" viewbox="0 0 22.325001 14.85" width="22.325001" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,12.012)"><path d="M360 -163h-62l-192 430v6l192 430h62l-193 -433z" id="x27E8"></path></g><g transform="matrix(.017,-0,0,-.017,7.083,12.012)"><path d="M412 140l28 -9q0 -2 -35 -131h-373v23q112 112 161 170q59 70 92 127t33 115q0 63 -31 98t-86 35q-75 0 -137 -93l-22 20l57 81q55 59 135 59q69 0 118.5 -46.5t49.5 -122.5q0 -62 -29.5 -114t-102.5 -130l-141 -149h186q42 0 58.5 10.5t38.5 56.5z" id="x32"></path></g><g transform="matrix(.017,-0,0,-.017,15.242,12.012)"><path d="M307 267l-192 -430h-62l193 433l-193 433h62l192 -430v-6z" id="x27E9"></path></g>
</svg></span></td><td align="center"> 1</td><td align="center"> 6</td></tr><tr><td align="left"><span style="width: 22.325001px;"><svg height="14.85" id="M1609" style="vertical-align:-2.22495pt" version="1.1" viewbox="0 0 22.325001 14.85" width="22.325001" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,12.012)"><path d="M360 -163h-62l-192 430v6l192 430h62l-193 -433z" id="x27E8"></path></g><g transform="matrix(.017,-0,0,-.017,7.083,12.012)"><path d="M285 378v-2q65 -13 102 -54.5t37 -97.5q0 -57 -30.5 -104.5t-74 -75t-85.5 -42t-72 -14.5q-31 0 -59.5 11t-40.5 23q-19 18 -16 36q1 16 23 33q13 10 24 0q58 -51 124 -51q55 0 88 40t33 112q0 64 -39 96.5t-88 32.5q-29 0 -64 -11l-6 29q77 25 118 57.5t41 84.5
q0 45 -26.5 69.5t-68.5 24.5q-67 0 -120 -79l-20 20l43 63q51 56 127 56h1q66 0 107 -37t41 -95q0 -42 -31 -71q-22 -23 -68 -54z" id="x33"></path></g><g transform="matrix(.017,-0,0,-.017,15.242,12.012)"><path d="M307 267l-192 -430h-62l193 433l-193 433h62l192 -430v-6z" id="x27E9"></path></g>
</svg></span></td><td align="center"> 2</td><td align="center"> 5</td></tr><tr><td align="left"><span style="width: 22.325001px;"><svg height="14.85" id="M1610" style="vertical-align:-2.22495pt" version="1.1" viewbox="0 0 22.325001 14.85" width="22.325001" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,12.012)"><path d="M360 -163h-62l-192 430v6l192 430h62l-193 -433z" id="x27E8"></path></g><g transform="matrix(.017,-0,0,-.017,7.083,12.012)"><path d="M456 178h-96v-72q0 -51 12.5 -62.5t72.5 -16.5v-27h-256v27q65 5 78 17t13 62v72h-260v28q182 271 300 426h40v-407h96v-47zM280 225v295h-2q-107 -148 -196 -295h198z" id="x34"></path></g><g transform="matrix(.017,-0,0,-.017,15.242,12.012)"><path d="M307 267l-192 -430h-62l193 433l-193 433h62l192 -430v-6z" id="x27E9"></path></g>
</svg></span></td><td align="center"> 3</td><td align="center"> 4</td></tr><tr><td align="left"><span style="width: 22.325001px;"><svg height="14.85" id="M1611" style="vertical-align:-2.22495pt" version="1.1" viewbox="0 0 22.325001 14.85" width="22.325001" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,12.012)"><path d="M360 -163h-62l-192 430v6l192 430h62l-193 -433z" id="x27E8"></path></g><g transform="matrix(.017,-0,0,-.017,7.083,12.012)"><path d="M153 550l-26 -186q79 31 111 31q90 0 141.5 -51t51.5 -119q0 -93 -89 -166q-85 -69 -173 -71q-32 0 -61.5 11.5t-41.5 23.5q-18 17 -17 34q2 16 22 33q14 9 26 -1q61 -50 124 -50q60 0 93 43.5t33 104.5q0 69 -41.5 110t-121.5 41q-53 0 -102 -20l38 305h286l6 -8
l-26 -65h-233z" id="x35"></path></g><g transform="matrix(.017,-0,0,-.017,15.242,12.012)"><path d="M307 267l-192 -430h-62l193 433l-193 433h62l192 -430v-6z" id="x27E9"></path></g>
</svg></span></td><td align="center"> 4</td><td align="center"> 3</td></tr><tr><td align="left"><span style="width: 22.325001px;"><svg height="14.85" id="M1612" style="vertical-align:-2.22495pt" version="1.1" viewbox="0 0 22.325001 14.85" width="22.325001" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,12.012)"><path d="M360 -163h-62l-192 430v6l192 430h62l-193 -433z" id="x27E8"></path></g><g transform="matrix(.017,-0,0,-.017,7.083,12.012)"><path d="M137 343l67 33q37 17 63 17q79 0 129.5 -53t50.5 -131q0 -92 -58 -156.5t-147 -64.5t-147 68t-58 182q0 63 17 119t43 95.5t61.5 72t69 52t67.5 31.5q62 22 128 33l6 -32q-56 -11 -108 -35q-149 -71 -184 -231zM227 337q-47 0 -95 -27q-6 -23 -6 -70q0 -93 36 -155.5
t96 -62.5q53 0 78 45.5t25 105.5q0 68 -35 116t-99 48z" id="x36"></path></g><g transform="matrix(.017,-0,0,-.017,15.242,12.012)"><path d="M307 267l-192 -430h-62l193 433l-193 433h62l192 -430v-6z" id="x27E9"></path></g>
</svg></span></td><td align="center"> 5</td><td align="center"> 2</td></tr><tr><td align="left"><span style="width: 22.325001px;"><svg height="14.85" id="M1613" style="vertical-align:-2.22495pt" version="1.1" viewbox="0 0 22.325001 14.85" width="22.325001" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,12.012)"><path d="M360 -163h-62l-192 430v6l192 430h62l-193 -433z" id="x27E8"></path></g><g transform="matrix(.017,-0,0,-.017,7.083,12.012)"><path d="M447 623l8 -12l-283 -613l-74 -10l-7 11q174 283 297 551h-216q-48 0 -62.5 -12t-33.5 -63h-29q10 60 18 148h382z" id="x37"></path></g><g transform="matrix(.017,-0,0,-.017,15.242,12.012)"><path d="M307 267l-192 -430h-62l193 433l-193 433h62l192 -430v-6z" id="x27E9"></path></g>
</svg></span></td><td align="center"> 6</td><td align="center"> 1</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

The distribution of the remaining points.

International Journal of Combinatorics

tab4

Table 4

Table 4: On Isosceles Sets in the 4-Dimensional Euclidean Space 