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A124554 Row 4 of table A124550; also equals the self-convolution 4th power of A124564, which is row 4 of table A124560.

%I A124554 #5 Mar 14 2015 11:57:11
%S A124554 1,4,26,204,1899,21180,287568,4802716,99084889,2531896840,80346294380,
%T A124554 3173108251044,156222183969181,9603287701405136,738066706464107408,
%U A124554 71003673625149131020,8559188942710590217013,1294012524894298022238700
%N A124554 Row 4 of table A124550; also equals the self-convolution 4th power of A124564, which is row 4 of table A124560.
%C A124554 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 A124554 G.f.: A(x) = [ Sum_{k>=0} y^k * R_{4k}(y) ]^4, where R_n(x) is the g.f. of row n in table A124550.
%Y A124554 Cf. A124550; other rows: A124551, A124552, A124553, A124555, A124556.
%K A124554 nonn
%O A124554 0,2
%A A124554 _Paul D. Hanna_, Nov 07 2006