OFFSET
0,9
LINKS
Seiichi Manyama, Antidiagonals n = 0..113, flattened
FORMULA
A(0,k) = 1 and A(n,k) = -(1/n) * Sum_{j=1..n} (Sum_{d|j} d^(k+1+k*j/d)) * A(n-j,k) for n > 0.
EXAMPLE
Square array begins:
1, 1, 1, 1, 1, ...
-1, -1, -1, -1, -1, ...
-1, -4, -16, -64, -256, ...
0, -5, -65, -665, -6305, ...
0, -3, -79, -1575, -28255, ...
CROSSREFS
KEYWORD
sign,tabl
AUTHOR
Seiichi Manyama, Nov 03 2017
STATUS
approved