A096348 a(n)=M(n,2)/M(n,1)^2 (see comment).

1, 1, 7, 299, 75489, 111654831, 965748455463, 48881464214720003, 14501604902479448419313, 25264056045683085316538557915, 258965250751022100651152205229358175

Offset

0,3

Comments

M(n,p)= determinant of the n X n matrix m(i,j)={prod(k=1,i,k+j)}^p. Terms are always odd integers.

Links

Table of n, a(n) for n=0..10.

Prog

(PARI) M(n, p)=matdet(matrix(n, n, i, j, prod(k=1, i, k+j)^p)); a(n)=M(n, 2)/M(n, 1)^2;

Crossrefs

Cf. A096313.

Sequence in context: A041851 A082168 A362658 * A281435 A015005 A209806

Adjacent sequences: A096345 A096346 A096347 * A096349 A096350 A096351

Keyword

nonn

Author

Benoit Cloitre, Jun 29 2004

Status

approved