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 A049119 Row sums of triangle A035469. 5
 1, 5, 41, 465, 6721, 117941, 2433145, 57673281, 1543866945, 46052954821, 1514472783561, 54426342354385, 2121878761891201, 89187219264121525, 4020175011403931801, 193438800635132796161, 9895634072548245693825 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Generalized Bell numbers B(4,1;n). REFERENCES P. Blasiak, K. A. Penson and A. I. Solomon, The general boson normal ordering problem, Phys. Lett. A 309 (2003) 198-205. LINKS W. Lang, On generalizations of Stirling number triangles, J. Integer Seqs., Vol. 3 (2000), #00.2.4. P. Blasiak, K. A. Penson and A. I. Solomon, The general boson normal ordering problem. P. Blasiak, K. A. Penson and A. I. Solomon, Combinatorial coherent states via normal ordering of bosons. FORMULA E.g.f.: exp(-1+1/(1-3*x)^(1/3))-1. a(n) = D^n(exp(x)) evaluated at x = 0, where D is the operator (1+x)^4*d/dx. Cf. A000110, A000262, A049118 and A049120. - Peter Bala, Nov 25 2011 CROSSREFS Cf. A049118, generalized Bell numbers B(3, 1, n). A049120. Sequence in context: A047735 A096364 A210661 * A305981 A032188 A240996 Adjacent sequences:  A049116 A049117 A049118 * A049120 A049121 A049122 KEYWORD easy,nonn AUTHOR STATUS approved

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Last modified September 19 18:47 EDT 2018. Contains 315210 sequences. (Running on oeis4.)