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Search: id:A069649
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| A069649 |
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Let M_n be the n X n matrix with M_n(i,j)=i^3/(i+j); then a(n)=1/det(M_n). |
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| 2, 9, 200, 30625, 38896200, 461231139600, 55435389494284800, 71735516141608609290000, 1046764828663084040608098000000, 178655433262265936739987483031412640000
(list; graph; listen)
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OFFSET
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1,1
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PROGRAM
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(PARI) for(n=1, 15, print1(1/matdet(matrix(n, n, i, j, i^3/(j+i))), ", "))
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CROSSREFS
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Sequence in context: A078524 A041795 A123625 this_sequence A111832 A114563 A112311
Adjacent sequences: A069646 A069647 A069648 this_sequence A069650 A069651 A069652
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KEYWORD
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easy,nonn
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AUTHOR
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Benoit Cloitre (benoit7848c(AT)orange.fr), Apr 21 2002
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