Infinitely Many Trees with Maximum Number of Holes Zero, One, and Two

Table 2

Trees connectable to a vertex colored in a two-hole tree with 1 and as holes.

Color of vertex	Connectable trees	Condition
		and all colors less than adjacent to .
		and all colors greater than less than adjacent to .
		or and
		or and
		or
		and all colors less than adjacent to
	and all colors greater than less than adjacent to .
	and
	or
	or
	and
	and
	and all colors less than adjacent to
	and all colors greater than less than adjacent to .