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A172903
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Number of n X 7 0..6 arrays with row sums 7 and column sums n
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1
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1, 393, 248137, 200148649, 187403959401, 193953937375521, 215298243454580553, 252150480931735527177, 307972094130678784570009, 389031356288581849014042193, 505162253803288598888223487713
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OFFSET
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1,2
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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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