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Secondary diagonal of table A124550; a(n) = A124550(n+1,n).
3

%I #3 Mar 30 2012 18:37:01

%S 1,2,15,204,4345,133212,5621371,319211576,24097683942,2399637270890,

%T 313606810455697,53638534570897308,11984755429488415041,

%U 3491974842611221434342,1324861497596788043284935

%N Secondary diagonal of table A124550; a(n) = A124550(n+1,n).

%C 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.

%F a(n) is divisible by (n+1): A124559(n) = a(n)/(n+1).

%Y Cf. A124550 (table); A124557, A124559; A124551, A124552, A124554, A124555, A124556.

%K nonn

%O 0,2

%A _Paul D. Hanna_, Nov 07 2006