OFFSET
0,13
LINKS
Seiichi Manyama, Antidiagonals n = 0..139, flattened
FORMULA
B(j,k) is the coefficient of Product_{i=1..k} (1+x^i).
A(0,k) = 1 and A(n,k) = (n-1)! * Sum_{j=1..min(A000217(k),n)} j*B(j,k)*A(n-j,k)/(n-j)! for n > 0.
EXAMPLE
Square array A(n,k) begins:
1, 1, 1, 1, 1, ...
0, 1, 1, 1, 1, ...
0, 1, 3, 3, 3, ...
0, 1, 13, 19, 19, ...
0, 1, 49, 97, 121, ...
0, 1, 261, 681, 921, ...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Seiichi Manyama, Oct 26 2017
STATUS
approved