A069649 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).

2, 9, 200, 30625, 38896200, 461231139600, 55435389494284800, 71735516141608609290000, 1046764828663084040608098000000, 178655433262265936739987483031412640000

Offset

1,1

Links

Table of n, a(n) for n=1..10.

Prog

(PARI) for(n=1, 15, print1(1/matdet(matrix(n, n, i, j, i^3/(j+i))), ", "))

Crossrefs

Sequence in context: A123625 A216692 A367901 * A111832 A114563 A217017

Adjacent sequences: A069646 A069647 A069648 * A069650 A069651 A069652

Keyword

easy,nonn

Author

Benoit Cloitre, Apr 21 2002

Status

approved