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A006173 Witt vector *2!.
(Formerly M0174)
9

%I M0174 #27 Nov 03 2017 22:18:36

%S 2,1,4,13,44,135,472,1492,5324,17405,63944,215096,799416,2752909,

%T 10310384,36443256,137263244,489166324,1860249448,6739795717,

%U 25596173800,93596253769,357974884304,1319325363658,5056389932088

%N Witt vector *2!.

%C If c is the Witt transform of b then b(n) = Sum_{d|n} A074650(n/d, c(d)).

%C The Somos transform sends sequence {a(n)} to sequence with g.f. Product_{i=1..n} 1/(1-a(i)*x^i).

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

%H H. Gaudier, <a href="http://www.emis.de/journals/SLC/opapers/s18gaudier.html">Relèvement des coefficients binomiaux dans les vecteurs de Witt</a>, Séminaire Lotharingien de Combinatoire. Institut de Recherche Math. Avancée, Université Louis Pasteur, Strasbourg, Actes 16 (1988), 358/S-18, pp. 93-108.

%H H. Gaudier, <a href="/A006173/a006173.pdf">Relèvement des coefficients binomiaux dans les vecteurs de Witt</a>, Séminaire Lotharingien de Combinatoire. Institut de Recherche Math. Avancée, Université Louis Pasteur, Strasbourg, Actes 16 (1988), 358/S-18, pp. 93-107. (Annotated scanned copy)

%F Inverse Somos transform of A000108 shifted left. - _Wouter Meeussen_, Aug 20 2002

%F Witt transform of A060165. - _Sean A. Irvine_, Jan 15 2017

%Y Cf. A006177, A006973.

%K nonn

%O 1,1

%A _Simon Plouffe_

%E Edited by _Christian G. Bower_, Aug 20 2002

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Last modified April 23 20:33 EDT 2024. Contains 371916 sequences. (Running on oeis4.)