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%I
%S 1,13,205,4245,114345,3919860,167310360,8719666200,545594049000,
%T 40394317194000,3494634235092000,349446163958892000,
%U 40005208010427660000,5199553600938496800000,761551300698921532800000
%N A diagonal of triangle in A008826.
%D L. Comtet, Advanced Combinatorics, Reidel, 1974, p. 148.
%t a[1, _] = 1; a[n_, x_] := a[n, x] = Sum[StirlingS2[n, k]*a[k, x]*x, {k, 0, n-1}]; Table[CoefficientList[a[n, x], x][[-2]], {n, 3, 17}] (* _Jean-François Alcover_, Nov 28 2013, after _Vladeta Jovovic_ *)
%K nonn
%O 3,2
%A _N. J. A. Sloane_, Jan 27 2001
%E More terms from _Vladeta Jovovic_, Jan 02 2004
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