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Search: id:A147203
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| A147203 |
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Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1100-0101-0111 pattern in any orientation. |
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+0
1
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| 1, 1, 1, 1, 1, 1, 1, 1, 17, 17, 49, 49, 205, 205, 2349, 2349, 61265, 61265, 1411269, 1411269, 32593981, 32593981
(list; graph; listen)
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OFFSET
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1,9
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EXAMPLE
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Maximal 9 X 9 example
.0.0.1.1.0.1.1.0.0
.0.0.0.1.0.1.0.0.0
.0.1.1.1.0.1.1.1.0
.0.1.0.0.0.0.0.1.0
.0.0.0.0.0.0.0.0.0
.0.1.0.0.0.0.0.1.0
.0.1.1.1.0.1.1.1.0
.0.0.0.1.0.1.0.0.0
.0.0.1.1.0.1.1.0.0
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CROSSREFS
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Sequence in context: A146873 A146793 A146801 this_sequence A146777 A147053 A146857
Adjacent sequences: A147200 A147201 A147202 this_sequence A147204 A147205 A147206
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KEYWORD
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nonn
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AUTHOR
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Ron Hardin (rhhardin(AT)att.net), Nov 04 2008
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