OFFSET
0,2
COMMENTS
LINKS
Harvey P. Dale, Table of n, a(n) for n = 0..1000
FORMULA
EXAMPLE
Triangle begins
1;
2,1;
1,4,1;
0,3,6,1;
0,0,6,8,1;
0,0,0,10,10,1;
MATHEMATICA
Flatten[Table[Binomial[n, k]Binomial[2, n-k], {n, 0, 20}, {k, 0, n}]] (* Harvey P. Dale, Jan 28 2016 *)
CROSSREFS
KEYWORD
AUTHOR
Paul Barry, Apr 26 2005
STATUS
approved