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A293906 E.g.f.: exp(Sum_{n>=1} A000009(n-1)*x^n/n). 1
1, 1, 2, 6, 30, 174, 1284, 11148, 110604, 1215180, 15066936, 205333416, 3031876872, 48536481096, 834192650160, 15357616617744, 301627633467024, 6274718094035088, 137885714638938144, 3199063553591292000, 77943291010448903136, 1991687512094232297696 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Seiichi Manyama, Table of n, a(n) for n = 0..439

FORMULA

a(0) = 1 and a(n) = (n-1)! * Sum_{k=1..n} A000009(k-1)*a(n-k)/(n-k)! for n > 0.

CROSSREFS

Cf. A000009, A293528.

Sequence in context: A196497 A127115 A290354 * A180893 A180894 A180895

Adjacent sequences:  A293903 A293904 A293905 * A293907 A293908 A293909

KEYWORD

nonn

AUTHOR

Seiichi Manyama, Oct 19 2017

STATUS

approved

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Last modified April 20 22:22 EDT 2019. Contains 322310 sequences. (Running on oeis4.)