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A162099
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Number of n X n symmetric binary arrays with rows, considered as binary numbers, in strictly increasing order, and no more than 9 ones in any row
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0
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2, 3, 9, 48, 438, 6774, 178263, 8064528, 635233629, 87635138366, 20775026454364, 8166374023036601, 5000658352116041964
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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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