Search: id:A016198
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%I A016198
%S A016198 1,8,47,250,1281,6468,32467,162590,813461,4068328,20343687,
%T A016198 101722530,508620841,2543120588,12715635707,63578244070,
%U A016198 317891351421,1589457019248,7947285620527,39736429151210
%N A016198 Expansion of 1/((1-x)(1-2x)(1-5x)).
%F A016198 a(n) = [(5^0-2^0) + (5^1-2^1) + ... + (5^n-2^n)]/3. - r22lou(AT)cox.net, 
               Nov 14 2005
%p A016198 a:=n->sum((5^(n-j)-2^(n-j))/3,j=0..n): seq(a(n), n=1..20); - Zerinvary 
               Lajos (zerinvarylajos(AT)yahoo.com), Jan 04 2007
%Y A016198 Cf. A016209, A016218, A016208, A000392, A000225, A003462, A003463, A003464, 
               A023000, A023001, A002452, A002275, A016123, A016125, A016256.
%Y A016198 Sequence in context: A139262 A029760 A026900 this_sequence A051140 A014524 
               A054488
%Y A016198 Adjacent sequences: A016195 A016196 A016197 this_sequence A016199 A016200 
               A016201
%K A016198 nonn
%O A016198 0,2
%A A016198 N. J. A. Sloane (njas(AT)research.att.com).

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