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A053304
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Number of 7 X 7 binary matrices with n=0..49 ones up to row and column permutations.
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8
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1, 1, 3, 6, 16, 34, 90, 211, 515, 1229, 2960, 6893, 15753, 34450, 72235, 143477, 269186, 473945, 781713, 1203617, 1728192, 2310376, 2874232, 3325215, 3576980, 3576980, 3325215, 2874232, 2310376, 1728192, 1203617, 781713, 473945, 269186
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OFFSET
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0,3
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LINKS
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FORMULA
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Sum_{n=0..49} a(n) = 33642660 = A002724(7).
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PROG
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vector(50, n, M(7, 7, n-1))
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CROSSREFS
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KEYWORD
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fini,full,nonn
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AUTHOR
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STATUS
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approved
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