OFFSET
0,9
FORMULA
E.g.f. of column k: exp(k * x * (exp(x) - 1)).
EXAMPLE
Square array begins:
1, 1, 1, 1, 1, 1, ...
0, 0, 0, 0, 0, 0, ...
0, 2, 4, 6, 8, 10, ...
0, 3, 6, 9, 12, 15, ...
0, 16, 56, 120, 208, 320, ...
0, 65, 250, 555, 980, 1525, ...
PROG
(PARI) T(n, k) = n!*sum(j=0, n\2, k^j*stirling(n-j, j, 2)/(n-j)!);
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Seiichi Manyama, May 05 2023
STATUS
approved