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A124552 Row 2 of table A124550; also equals the self-convolution square of A124562, which is row 2 of table A124560.

%I A124552 #3 Mar 30 2012 18:37:01
%S A124552 1,2,7,30,159,1056,8812,92062,1200415,19512990,395379699,9991017068,
%T A124552 315094522052,12413464676162,611490149713956,37699912801819870,
%U A124552 2911578809929672737,281916836769424155940,34249052273023310929439
%N A124552 Row 2 of table A124550; also equals the self-convolution square of A124562, which is row 2 of table A124560.
%C A124552 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 A124552 G.f.: A(x) = [ Sum_{k>=0} y^k * R_{2k}(y) ]^2, where R_n(x) is the g.f. of row n in table A124550.
%Y A124552 Cf. A124550; other rows: A124551, A124553, A124554, A124555, A124556.
%K A124552 nonn
%O A124552 0,2
%A A124552 _Paul D. Hanna_, Nov 07 2006