The Laplacian Spectrum, Kirchhoff Index, and the Number of Spanning Trees of the Linear Heptagonal Networks

Table 1

Kirchhoff indices of linear heptagonal networks from to .

	79.25		41 172.05		268 961.03		845 446.16		1932 627.45
	404.17		52 876.62		308 245.21		928 509.96		2075 670.87
	1138.09		66 610.15		351 178.36		1016 842.73		2225 603.25
	2442.97		82 534.64		397 922.47		1110 606.45		2382 586.59
	4480.81		100 812.10		448 639.54		1209 979.64		2546 782.89
	7413.61		121 604.52		503 491.58		1315 074.79		2718 354.15
	11 403.37		145 073.90		562 640.57		1426 103.39		2897 462.38
	16 612.10		171 382.24		626 248.53		1543 210.96		3084 269.56
	23 201.79		200 691.54		694 477.44		1666 559.50		3278 937.71
	31 334.44		233 163.80		767 489.32		1796 310.99		3481 628.82