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A366003
Number of free polyominoids with n cells, allowing right-angled corner-connections and right-angled edge-connections.
4
1, 2, 24, 359, 7882
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
See A365995 for further details and a table of related sequences.
LINKS
Table of n, a(n) for n=1..5.
Pontus von Brömssen, Illustration for sizes 1..3.
Wikipedia, Polyominoid.
Index entries for sequences related to polyominoes.
CROSSREFS
Cf. A365995, A366004 (fixed).
25th row of A366766.
Sequence in context: A043699 A220317 A220340 * A134805 A119702 A126804
Adjacent sequences: A366000 A366001 A366002 * A366004 A366005 A366006
KEYWORD
nonn,hard,more
AUTHOR
Pontus von Brömssen, Sep 28 2023
STATUS
approved

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Last modified September 28 14:48 EDT 2024. Contains 376297 sequences.
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