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A006252 Expansion of 1/(1 - log (1+x)).
(Formerly M1275)
+0
9
1, 1, 1, 2, 4, 14, 38, 216, 600, 6240, 9552, 319296, -519312, 28108560, -176474352, 3998454144, -43985078784, 837126163584, -12437000028288, 237195036797184, -4235955315745536, 85886259443020800 (list; graph; listen)
OFFSET

0,4

COMMENT

Stirling transform of a(n+1)=[1,1,2,4,14,38,...] is A000255(n)=[1,3,11,53,309,...]. - Michael Somos Mar 04 2004

Stirling transform of 2*a(n)=[2,2,4,8,28,...] is A052849(n)=[2,4,12,48,240,...]. - Michael Somos Mar 04 2004

Stirling transform of a(n)=[1,1,2,4,14,38,216,...] is A000142(n)=[1,2,6,24,120,...]. - Michael Somos Mar 04 2004

Stirling transform of a(n-1)=[1,1,1,2,4,14,38,...] is A000522(n-1)=[1,2,5,16,65,...]. - Michael Somos Mar 04 2004

Stirling transform of a(n-1)=[0,1,1,2,4,14,38,...] is A007526(n-1)=[0,1,4,15,64,...]. - Michael Somos Mar 04 2004

REFERENCES

G. P\'{o}lya, Induction and Analogy in Mathematics. Princeton Univ. Press, 1954, p. 9.

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

FORMULA

Sum_{k=0..n} k!*stirling1(n, k). - Vladeta Jovovic (vladeta(AT)eunet.rs), Sep 08 2002

E.g.f.: 1/(1-log(1+x)).

PROGRAM

(PARI) a(n)=if(n<0, 0, n!*polcoeff(1/(1-log(1+x+x*O(x^n))), n))

CROSSREFS

Sequence in context: A053623 A035010 A055540 this_sequence A079995 A152011 A000912

Adjacent sequences: A006249 A006250 A006251 this_sequence A006253 A006254 A006255

KEYWORD

sign

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified December 11 12:57 EST 2009. Contains 170656 sequences.


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