OFFSET
0,3
COMMENTS
EXAMPLE
a(0) = triangular(3) mod triangular(2) = 6 mod 3 = 0; a(2) = triangular(4) mod triangular(3) = 10 mod 6 = 4.
PROG
(PARI) for(j=3, 15, for(k=2, j-1, print1(binomial(j+1, 2)%binomial(k+1, 2), ", ")))
CROSSREFS
KEYWORD
AUTHOR
Klaus Brockhaus, Aug 02 2002
STATUS
approved