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A162044
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Number of n X n binary arrays with rows and columns, considered as binary numbers, in nondecreasing order, and no more than 2 ones in any row or column
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0
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2, 7, 24, 98, 461, 2458, 14613, 95461, 677729, 5184135, 42428781, 369422957, 3405529609, 33103337716, 338110552799
(list;
graph;
refs;
listen;
history;
text;
internal format)
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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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