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A147367
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Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 01110-11111 pattern in any orientation.
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0
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1, 1, 1, 1, 5, 9, 28, 65, 286, 1283, 8624, 48653, 407612, 3268073, 37940635, 437037462
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OFFSET
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1,5
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LINKS
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EXAMPLE
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Maximal 8 X 8 example
.1.0.0.0.0.0.0.0
.1.1.0.1.1.1.1.1
.1.1.0.0.1.1.1.0
.1.1.0.0.0.0.0.1
.1.0.0.0.0.0.1.1
.0.1.1.1.0.0.1.1
.1.1.1.1.1.0.1.1
.0.0.0.0.0.0.0.1
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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