A373612 Size of the largest polyiamond that can be enclosed in n cells on a triangular lattice.

0, 0, 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 6, 6, 6, 7, 7, 10

Offset

6,9

Links

Table of n, a(n) for n=6..23.

Example

A single triangular face takes 12 triangles to completely enclose so a(12) = 1.

Crossrefs

Cf. A290648. A257594 is the hexagonal tiling equivalent. A008642 is the square tiling equivalent (if prepended with 7 zeros).

Sequence in context: A096111 A358337 A101081 * A147795 A258186 A357415

Adjacent sequences: A373609 A373610 A373611 * A373613 A373614 A373615

Keyword

nonn,more

Author

Abraham Maxfield, Jun 10 2024

Status

approved