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Search: id:A147395
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| A147395 |
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Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 1000-1000-1111-0001-0001 pattern in any orientation. |
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+0
1
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| 1, 1, 1, 1, 1, 1, 1, 1, 1, 9, 23, 39, 63, 165
(list; graph; listen)
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OFFSET
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1,10
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EXAMPLE
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Maximal 10 X 10 example
.0.0.0.0.1.1.1.0.0.0
.0.0.0.0.1.0.0.0.0.0
.0.0.0.0.1.0.1.0.0.0
.1.0.1.1.1.0.1.0.0.0
.1.0.0.0.0.0.1.1.1.1
.1.1.1.1.0.0.0.0.0.1
.0.0.0.1.0.1.1.1.0.1
.0.0.0.1.0.1.0.0.0.0
.0.0.0.0.0.1.0.0.0.0
.0.0.0.1.1.1.0.0.0.0
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CROSSREFS
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Sequence in context: A009235 A031023 A054302 this_sequence A144390 A024843 A159221
Adjacent sequences: A147392 A147393 A147394 this_sequence A147396 A147397 A147398
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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)
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