OFFSET
0,3
LINKS
Seiichi Manyama, Rows n = 0..481, flattened
FORMULA
G.f. of column k: (k+1)! * x^(k*(k+1)/2) / Product_{j=1..k} (1-x^j).
EXAMPLE
First few rows are:
1;
0, 2;
0, 2;
0, 2, 6;
0, 2, 6;
0, 2, 12;
0, 2, 12, 24;
0, 2, 18, 24;
0, 2, 18, 48;
0, 2, 24, 72;
0, 2, 24, 96, 120.
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
Seiichi Manyama, Sep 07 2017
STATUS
approved