OFFSET
0,3
FORMULA
Infinite product of triangle A167271 columns, as polynomials: (1, 1, 1,...)
* (1, 0, 2, 0, 3,...) * (1, 0, 0, 1, 0, 0, 1,...) * (1, 0, 0, 3, 0, 0, 6,...)
* ...
CROSSREFS
KEYWORD
nonn
AUTHOR
Gary W. Adamson & Mats Granvik, Oct 31 2009
STATUS
approved