Search: id:A144109
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%I A144109
%S A144109 1,9,44,207,991,4752,22769,109089,522676,2504295,11998799,57489696,
%T A144109 275449681,1319758713,6323343884,30296960703,145161459631,695510337456,
%U A144109 3332390227649,15966440800785,76499813776276,366532628080599
%N A144109 INVERT transform of the cubes A000578.
%C A144109 Analog of A033453 (INVERT squares) and A001906 (INVERT first powers).
%F A144109 G.f.: (1+4x+x^2)/((1+x^2)(1-5x+x^2)). a(n) = (9*A004254(n+1)-4*A056594(n))/
               5.
%Y A144109 Sequence in context: A074631 A084903 A034558 this_sequence A099867 A104470 
               A084016
%Y A144109 Adjacent sequences: A144106 A144107 A144108 this_sequence A144110 A144111 
               A144112
%K A144109 nonn
%O A144109 0,2
%A A144109 R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 11 2008

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