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Search: id:A133515
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A133515 Number of n X n binary matrices with every 1 vertically or horizontally adjacent to some 0. +0
1
1, 11, 291, 28661, 10982565, 16031828359, 89373230342147, 1904212088591018521, 155026375803222057878889, 48225130114674924906540348115, 57322477811272486520770053115140403 (list; graph; listen)
OFFSET

1,2

CROSSREFS

Adjacent sequences: A133512 A133513 A133514 this_sequence A133516 A133517 A133518

Sequence in context: A103547 A064758 A030428 this_sequence A067424 A001538 A101269

KEYWORD

nonn

AUTHOR

Ron Hardin (rhh(AT)cadence.com), Dec 24 2007

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.


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