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A147085
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Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 10001-11111 pattern in any orientation.
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0
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1, 1, 1, 1, 5, 1, 9, 1, 17, 1, 197, 25, 1045, 149, 7998, 825, 200321, 9523, 3209727, 104723, 72875134, 1495123, 3146115855, 45808775, 136864094359, 1584020605
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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 9 X 9 example
.0.0.1.0.0.0.1.0.0
.0.0.1.1.1.1.1.0.0
.1.1.0.0.0.0.0.1.1
.0.1.0.0.0.0.0.1.0
.0.1.0.0.0.0.0.1.0
.0.1.0.0.0.0.0.1.0
.1.1.0.0.0.0.0.1.1
.0.0.1.1.1.1.1.0.0
.0.0.1.0.0.0.1.0.0
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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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