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A151801
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Number of n X n binary arrays with rows, considered as binary numbers, in strictly increasing order, and columns, considered as binary numbers, in nondecreasing order.
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5
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2, 4, 21, 330, 14610, 1820715, 653629616, 696496706166, 2267861968974085, 23151301116946350437, 757490164568070202377310, 80950840941871760357231324684
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OFFSET
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1,1
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LINKS
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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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