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Search: id:A147043
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A147043 Number of n X n binary arrays with all ones connected only in a 0100-1100-0111-0010 pattern in any orientation. +0
1
1, 1, 1, 5, 17, 45, 273, 2925, 46625, 908301, 25944849, 1141847565, 74712257377, 7074982666029, 978286939049873, 197925384324109741, 58779837596021528865 (list; graph; listen)
OFFSET

1,4

EXAMPLE

Maximal 8 X 8 example

.0.0.0.0.0.1.0.0

.0.0.1.0.1.1.1.0

.0.1.1.0.0.0.1.1

.0.0.1.1.1.0.1.0

.0.1.0.1.0.1.0.0

.1.1.0.0.1.1.1.0

.0.1.1.1.0.0.1.1

.0.0.1.0.0.0.1.0

CROSSREFS

Sequence in context: A147050 A147397 A147193 this_sequence A146264 A146216 A046787

Adjacent sequences: A147040 A147041 A147042 this_sequence A147044 A147045 A147046

KEYWORD

nonn

AUTHOR

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

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.


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