A038147 Number of polyhexes with n cells.

1, 1, 3, 7, 22, 83, 341, 1519, 7114, 34350

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn
• hard
• more

Links

• J. V. Knop, K. Szymanski, Ž. Jeričević, and N. Trinajstić, On the total number of polyhexes, Match, No. 16 (1984), 119-134.
• Louis Marin, Counting Polyominoes in a Rectangle b X h, arXiv:2406.16413 [cs.DM], 2024. See p. 145.

Crossrefs

See A000228 for another version of this sequence.

Cf. A018190, A038143-A038146.