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A014325 Four-fold convolution of Bell numbers with themselves. 3

%I

%S 1,4,14,48,169,624,2442,10188,45452,217100,1109914,6064584,35330715,

%T 218788432,1435302930,9940062428,72422364227,553338786504,

%U 4420324121772,36820875272488,319053830821880,2869645346679368,26739383194844404,257682847299543248

%N Four-fold convolution of Bell numbers with themselves.

%H Alois P. Heinz, <a href="/A014325/b014325.txt">Table of n, a(n) for n = 0..575</a>

%F G.f.: (1/(1 - x - x^2/(1 - 2*x - 2*x^2/(1 - 3*x - 3*x^2/(1 - 4*x - 4*x^2/(1 - ...))))))^4, a continued fraction. - _Ilya Gutkovskiy_, Sep 25 2017

%Y Cf. A000110.

%Y Column k=4 of A292870.

%K nonn

%O 0,2

%A _N. J. A. Sloane_.

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Last modified October 25 19:51 EDT 2021. Contains 348255 sequences. (Running on oeis4.)