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A373637
Number of free n-celled polyiamonds to which two inequivalent cells can be adjoined such that the two resulting free (n+1)-celled polyiamonds are identical.
3
0, 0, 0, 0, 1, 0, 0, 3, 0, 1, 8, 0, 6, 24, 1, 22
OFFSET
1,8
COMMENTS
Two cells that can be adjoined to an n-celled polyiamond are equivalent if there is an isomorphism between the two resulting (n+1)-celled polyiamonds that maps the adjoined cell of the first to the adjoined cell of the second.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
STATUS
approved