A359525 Number of well-connected free polyiamonds with n cells, where a polyiamond is defined as well-connected if, for all the triangles it contains, the removal of that single triangle would result in an intact polyiamond.

1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 3, 1, 3, 2, 14

Offset

1,14

Links

Table of n, a(n) for n=1..18.

John Mason, Well-connected polyiamond examples

Crossrefs

Cf. A000577, A341219.

Sequence in context: A300580 A075676 A298262 * A124814 A122567 A122431

Adjacent sequences: A359522 A359523 A359524 * A359526 A359527 A359528

Keyword

nonn,more

Author

John Mason, Jan 05 2023

Status

approved