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A144052
Number of n X n binary arrays with every 1 adjacent to at least one other 1, but at most one 1 adjacent horizontally and at most one 1 adjacent vertically.
0
1, 10, 67, 1859, 144973, 23675451, 10663538347, 12275556405619, 35393545223418744, 261328488528715635157, 4921805399637541783782081, 235643299844227266763714703387
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
Table of n, a(n) for n=1..12.
CROSSREFS
Sequence in context: A324366 A197783 A197751 * A280438 A192021 A026984
Adjacent sequences: A144049 A144050 A144051 * A144053 A144054 A144055
KEYWORD
nonn
AUTHOR
R. H. Hardin, Sep 08 2008
STATUS
approved

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Last modified October 1 03:08 EDT 2024. Contains 376365 sequences.
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