Search: id:A141845
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%I A141845
%S A141845 1,7,38,194,976,4887,24443,122224,611131,3055667,15278348,76391754,
%T A141845 381958786,1909793947,9548969753,47744848784,238724243941,1193621219727,
%U A141845 5968106098658,29840530493314,149202652466596,746013262333007
%N A141845 a(n) = 5*a(n-1) + A047201(n), a(1) = 1. A047201 = numbers not divisible 
               by 5: (1, 2, 3, 4, 6, 7, 8, 9, 11,...).
%F A141845 G.f.: (1+x+x^2+x^3+x^4)/((1-x)^2(1+x)(1+x^2)(1-5x)). [From R. J. Mathar 
               (mathar(AT)strw.leidenuniv.nl), Sep 06 2008]
%e A141845 a(4) = 194 = 5*a(3) + A047201(4) = 5*38 + 4.
%Y A141845 Cf. A047201.
%Y A141845 Sequence in context: A128726 A055146 A014827 this_sequence A048437 A099461 
               A104553
%Y A141845 Adjacent sequences: A141842 A141843 A141844 this_sequence A141846 A141847 
               A141848
%K A141845 nonn
%O A141845 1,2
%A A141845 Gary W. Adamson (qntmpkt(AT)yahoo.com), Jul 11 2008
%E A141845 Extended and corrected by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), 
               Sep 06 2008

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