OFFSET
0,2
COMMENTS
a(n) is a square for n=2,4 and 5. Are there any other values?
PROG
(PARI) for(n=1, 30, print1(matdet(matrix(n, n, i, j, prime(i+j))), ", "))
CROSSREFS
KEYWORD
easy,sign
AUTHOR
Benoit Cloitre, May 30 2002
EXTENSIONS
Edited by N. J. A. Sloane, Sep 18 2008 at the suggestion of R. J. Mathar.
STATUS
approved