OFFSET
1,1
FORMULA
If n==2 (mod(8)) a(n)=-1 a(n)=1 otherwise
PROG
(PARI) for(n=1, 150, print1(kronecker(n+1, n), ", "))
CROSSREFS
KEYWORD
easy,sign
AUTHOR
Benoit Cloitre, Jun 14 2002
STATUS
approved