OFFSET
1,5
COMMENTS
Is a(n) always of the form 2^u*3^v?
PROG
(PARI) for(n=1, 70, print1(numerator(matdet(matrix(n, n, i, j, 1/(i*j+i+j)))), ", "))
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Benoit Cloitre, Apr 21 2002
STATUS
approved