A378672 Numbers of uniquely embeddable trees on n vertices.

1, 1, 1, 2, 3, 6, 10, 19, 31, 57, 95, 161

Offset

1,4

Links

Table of n, a(n) for n=1..12.

Eric Weisstein's World of Mathematics, Uniquely Embeddable Graph.

Eric Weisstein's World of Mathematics, Tree.

Formula

a(n) = A000055(n) - A378673(n).

Crossrefs

Cf. A378673 (uniquely embeddable trees).

Cf. A372853 (uniquely embeddable planar connected graphs).

Cf. A000055 (trees).

Sequence in context: A089985 A191518 A217382 * A244742 A007473 A014595

Adjacent sequences: A378668 A378669 A378670 * A378673 A378674 A378676

Keyword

nonn,more,new

Author

Eric W. Weisstein, Dec 03 2024

Status

approved