Search: id:A025966
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%I A025966
%S A025966 1,20,260,2800,27216,248640,2182720,18656000,156544256,
%T A025966 1296655360,10641146880,86744985600,703688298496,5688011079680,
%U A025966 45855653642240,368956766617600,2964331947687936,23790756829593600
%N A025966 Expansion of 1/((1-2x)(1-4x)(1-6x)(1-8x)).
%F A025966 a(n)= (2^n)*stirling2(n+4, 4), n>=0, with stirling2(n, m)=A008277(n, 
               m).
%F A025966 a(n)=(-2^n+24*4^n-81*6^n+64*8^n)/3!.
%F A025966 G.f.: 1/((1-2*x)*(1-4*x)*(1-6*x)*(1-8*x)). E.g.f.: (-exp(2*x)+24*exp(4*x)-81*exp(6*x)+64*exp(8*x))/
               3!.
%Y A025966 Fourth column of triangle A075497.
%Y A025966 Cf. A016283, A075510.
%Y A025966 Sequence in context: A025986 A028027 A081244 this_sequence A041764 A022111 
               A025943
%Y A025966 Adjacent sequences: A025963 A025964 A025965 this_sequence A025967 A025968 
               A025969
%K A025966 nonn
%O A025966 0,2
%A A025966 N. J. A. Sloane (njas(AT)research.att.com).

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