OFFSET
1,3
LINKS
N. J. A. Sloane, Transforms
FORMULA
E.g.f.: A(x, y) = exp(exp(y*exp(x)-y)-1).
EXAMPLE
Triangle begins
1;
1, 2;
1, 6, 5;
1, 14, 30, 15;
1, 30, 125, 150, 52; ...
MATHEMATICA
nn=8; a=Exp[x]-1; Drop[Map[Select[#, #>0&]&, Range[0, nn]! CoefficientList[Series[Exp[Exp[y a]-1], {x, 0, nn}], {x, y}]], 1]//Grid (* Geoffrey Critzer, Sep 22 2013 *)
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Christian G. Bower, Jun 09 2000
STATUS
approved