A364483 The number of stones-and-bones tilings of the (3n-1,3n)-benzel when one orientation of bone is forbidden.

1, 16, 3360, 9371648, 347950546944, 172066422921363456, 1133503548832944876421120

Offset: 1

Author

James Propp, Jul 26 2023

Keywords

• nonn
• more

Comments

See Problem 11 of the Propp article. It is conjectured that a(n) is 2-adically continuous as a function of n.

Links

• James Propp, Trimer covers in the triangular grid: twenty mostly open problems, arXiv:2206.06472 [math.CO], 2022.

Crossrefs

Cf. A352207, A364481, A364482, A364416, A364417, A364418, A364438.