OFFSET
0,5
COMMENTS
FORMULA
Number triangle T(n, k)=binomial(n+3k, 4k)
EXAMPLE
Rows begin
1;
1,1;
1,5,1;
1,15,9,1;
1,35,45,13,1;
1,70,165,91,17,1;
CROSSREFS
KEYWORD
AUTHOR
Paul Barry, Jul 06 2005
STATUS
approved