OFFSET
0,8
LINKS
Seiichi Manyama, Antidiagonals n = 0..139, flattened
FORMULA
A(n,k) = k*n*A(n-1,k) - A(n-2,k) for n>1.
EXAMPLE
Square array begins:
1, 1, 1, 1, 1, 1, ...
0, 1, 2, 3, 4, 5, ...
-1, 1, 7, 17, 31, 49, ...
0, 2, 40, 150, 368, 730, ...
1, 7, 313, 1783, 5857, 14551, ...
CROSSREFS
KEYWORD
sign,tabl
AUTHOR
Seiichi Manyama, Jun 02 2018
STATUS
approved