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A146390
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Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1000-1100-0111 pattern in any orientation.
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0
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1, 1, 1, 1, 1, 1, 23, 37, 875, 1963, 36757, 101419, 3822491, 13049405, 1249688673, 5392077739, 1212521843981, 6669127121253, 2534961643458601, 17521933465479479, 12481578238641974653
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OFFSET
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1,7
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LINKS
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EXAMPLE
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Maximal 8 X 8 example
.0.1.1.0.0.1.1.0
.1.1.0.0.0.0.1.1
.1.0.0.0.0.0.0.1
.1.0.0.0.0.0.0.1
.0.0.1.0.0.1.0.0
.0.0.1.0.0.1.0.0
.0.1.1.0.0.1.1.0
.1.1.0.0.0.0.1.1
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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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