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 A014325 Four-fold convolution of Bell numbers with themselves. 3
 1, 4, 14, 48, 169, 624, 2442, 10188, 45452, 217100, 1109914, 6064584, 35330715, 218788432, 1435302930, 9940062428, 72422364227, 553338786504, 4420324121772, 36820875272488, 319053830821880, 2869645346679368, 26739383194844404, 257682847299543248 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS Alois P. Heinz, Table of n, a(n) for n = 0..575 FORMULA 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 CROSSREFS Cf. A000110. Column k=4 of A292870. Sequence in context: A082590 A085280 A007851 * A047028 A220819 A047138 Adjacent sequences:  A014322 A014323 A014324 * A014326 A014327 A014328 KEYWORD nonn AUTHOR STATUS approved

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Last modified February 21 03:59 EST 2019. Contains 320364 sequences. (Running on oeis4.)