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A124557
Main diagonal of table A124550.
4
1, 1, 7, 91, 1899, 57876, 2447115, 139777303, 10629219251, 1066463205220, 140409644914798, 24185696469330452, 5439617764120907676, 1594552369099740836202, 608364562372792302094447
OFFSET
0,3
COMMENTS
In table A124550, the g.f. of row n, R_n(y), simultaneously satisfies: R_n(y) = [ Sum_{k>=0} y^k * R_{n*k}(y) ]^n for n>=0.
CROSSREFS
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Nov 07 2006
STATUS
approved