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%I #4 Oct 21 2012 15:17:20
%S 1,5,85,2230,73157,2748240,113026865,4958785285,228333859874,
%T 10915734783342,537683100870537,27139187103865728,1397889420026942941,
%U 73245245888401473591,3894386042722560634412,209696591518450916905784,11416666685883303837337577,627639029564864592680196915
%N Central coefficients of triangle A181143.
%C The g.f. of triangle A181143 is exp( Sum_{n>=1} [Sum_{k=0..n} C(n,k)^3*y^k] * x^n/n ).
%o (PARI) {a(n)=polcoeff(polcoeff(exp(sum(m=1, 2*n, sum(j=0, m, binomial(m, j)^3*y^j)*x^m/m)+O(x^(2*n+1))), 2*n, x), n, y)}
%o for(n=0, 20, print1(a(n), ", "))
%Y Cf. A181143.
%K nonn
%O 0,2
%A _Paul D. Hanna_, Oct 21 2012
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