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A090914
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Reciprocal of (n+1)! times determinant of n X n matrix whose (i,j)-th element is 1/(i+j).
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0
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1, 1, 12, 1800, 3528000, 93350880000, 34157460395520000, 176018448722253096960000, 12957844528516872887046144000000, 13783997562964632581368087262085120000000
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,3
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MATHEMATICA
| Table[ 1 / Det[ Table[ 1 / (i + j), {i, 1, n}, {j, 1, n} ]]/(n + 1)!, {n, 1, 10}]
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PROG
| (PARI) a(n)=if(n<0, 0, 1/((n+1)!*matdet(matrix(n, n, i, j, 1/(i+j)))))
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CROSSREFS
| A067689/(n+1)!
Sequence in context: A145186 A160304 A013479 * A049405 A049406 A104009
Adjacent sequences: A090911 A090912 A090913 * A090915 A090916 A090917
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KEYWORD
| nonn
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AUTHOR
| Robert G. Wilson v (rgwv(AT)rgwv.com), Feb 26 2004
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