OFFSET
2,3
FORMULA
T(n,k) = 2^(n-k-1) if n>k, otherwise 0.
EXAMPLE
Triangle begins
1, 0,
2, 1, 0,
4, 2, 1, 0,
8, 4, 2, 1, 0,
16, 8, 4, 2, 1, 0,
32, 16, 8, 4, 2, 1, 0,
64, 32, 16, 8, 4, 2, 1, 0
PROG
(PARI) T(n, k) = if(n>k, 2^(n-k-1), 0);
for(n=2, 10, for(k=1, n, print1(T(n, k), ", ")); print()); /* show triangle */
CROSSREFS
KEYWORD
nonn,easy,tabf
AUTHOR
Paul Curtz, Jul 09 2008
STATUS
approved