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A366005
Number of free polyominoids with n cells, allowing right-angled corner-connections and any edge-connections.
4
1, 3, 29, 457, 10378
(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, A366006 (fixed).
26th row of A366766.
Sequence in context: A371652 A302923 A370922 * A376038 A326433 A113871
Adjacent sequences: A366002 A366003 A366004 * A366006 A366007 A366008
KEYWORD
nonn,hard,more
AUTHOR
Pontus von Brömssen, Sep 28 2023
STATUS
approved

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Last modified October 5 10:13 EDT 2024. Contains 376540 sequences.
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