A350580 Number of n-celled polytans with holes.

0, 0, 0, 0, 0, 0, 2, 11, 76, 422, 2187, 10625, 49381, 221738, 969583, 4153567

Offset

1,7

Links

Table of n, a(n) for n=1..16.

Crossrefs

Cf. A006074, A001419.

Sequence in context: A374314 A055085 A354298 * A209101 A118802 A365146

Adjacent sequences: A350577 A350578 A350579 * A350581 A350582 A350583

Keyword

nonn,more,hard

Author

John Mason, Jan 07 2022

Status

approved