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Search: id:A147091
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A147091 Number of n X n binary arrays with all ones connected only in a 1000-1000-1000-1111 pattern in any orientation. +0
1
1, 1, 1, 5, 19, 87, 337, 1993, 25339, 376795, 8378039, 203827787, 6728351645, 320530236227 (list; graph; listen)
OFFSET

1,4

EXAMPLE

Maximal 8 X 8 example

.0.1.1.1.1.0.0.0

.0.1.0.0.0.1.0.0

.0.1.0.0.0.1.0.0

.0.1.0.0.0.1.0.1

.1.0.1.1.1.1.0.1

.1.0.0.0.0.0.0.1

.1.0.0.0.1.1.1.1

.1.1.1.1.0.0.0.0

CROSSREFS

Sequence in context: A149795 A149796 A005191 this_sequence A149797 A149798 A149799

Adjacent sequences: A147088 A147089 A147090 this_sequence A147092 A147093 A147094

KEYWORD

nonn

AUTHOR

Ron Hardin (rhhardin(AT)att.net), Nov 04 2008

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.


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