OFFSET
1,4
COMMENTS
a(n) is always >= 0
MATHEMATICA
Table[Sum[KroneckerSymbol[i, n], {i, n}], {n, 100}] (* Alonso del Arte, Dec 26 2012 *)
PROG
(PARI) for(n=1, 100, print1(sum(i=1, n, kronecker(i, n)), ", "))
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Benoit Cloitre, Jun 16 2002
STATUS
approved