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A369365
Number of free rooted (or pointed) polyiamonds with n cells.
2
1, 1, 2, 6, 16, 50, 150, 458, 1388, 4233, 12875, 39227, 119456, 363868, 1107912, 3372793, 10264156, 31228969
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
LINKS
Table of n, a(n) for n=1..18.
Index entries for sequences related to polyominoes.
CROSSREFS
Cf. A000577, A126202, A369362, A369366.
Sequence in context: A213429 A195645 A000136 * A013989 A002841 A136509
Adjacent sequences: A369362 A369363 A369364 * A369366 A369367 A369368
KEYWORD
nonn,more
AUTHOR
Pontus von Brömssen, Jan 22 2024
EXTENSIONS
a(18) from John Mason, Sep 20 2024
STATUS
approved

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Last modified October 6 14:04 EDT 2024. Contains 376577 sequences.
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