OFFSET
0,9
LINKS
Seiichi Manyama, Antidiagonals n = 0..52, flattened
FORMULA
G.f. of column k: Product_{j>=1} (1-x^j)^(j^(k*j)).
A(0,k) = 1 and A(n,k) = -(1/n) * Sum_{j=1..n} (Sum_{d|j} d^(k*d+1)) * A(n-j,k) for n > 0. - Seiichi Manyama, Nov 04 2017
EXAMPLE
Square array begins:
1, 1, 1, 1, ...
-1, -1, -1, -1, ...
-1, -4, -16, -64, ...
0, -23, -713, -19619, ...
0, -223, -64687, -16755517, ...
CROSSREFS
KEYWORD
sign,tabl
AUTHOR
Seiichi Manyama, Mar 14 2017
STATUS
approved