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A071409
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Determinant of the n X n matrix m(i,j)=i^j+j^i.
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1
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2, 7, 80, 2692, -188160, 673763328, 53114341552128, 11442355482580107264, 101868843539003372580372480, -11188458083483956358422238173593600, 39367352051951445285669984261580278202368000
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OFFSET
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1,1
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COMMENTS
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If n==0 mod 5 a(n) < 0
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LINKS
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PROG
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(PARI) for(n=1, 20, print1(matdet(matrix(n, n, i, j, i^j+j^i)), ", "))
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CROSSREFS
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KEYWORD
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easy,sign
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AUTHOR
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STATUS
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approved
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