OFFSET
0,4
FORMULA
T(n, m) = Sum_{i=0..n} |stirling1(n, i)|*binomial(2^i, m).
EXAMPLE
Triangle starts:
1, 1;
1, 2, 1;
2, 6, 7, 4, 1;
6, 24, 48, 68, 73, 56, 28, 8, 1;
...
MAPLE
with(combinat): for n from 0 to 10 do for m from 0 to 2^n do printf(`%d, `, sum(abs(stirling1(n, i))*binomial(2^i, m), i=0..n)) od: od:
CROSSREFS
KEYWORD
easy,nonn,tabf
AUTHOR
Vladeta Jovovic, Jan 23 2001
EXTENSIONS
More terms from James A. Sellers, Jan 24 2001
STATUS
approved