Search: id:A144454
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%I A144454
%S A144454 0,1,8,5,8,35,16,7,80,11,40,143,56,65,224,85,32,323,40,133,440,161,176,
%T A144454 575,208,75,728,87,280,899,320,341,1088,385,136,1295,152,481,1520,533,
%U A144454 560,1763,616,215,2024,235,736,2303,800,833,2600,901,312,2915,336,1045
%N A144454 First trisection of A061039.
%C A144454 Numerators of (n-1)(n+1)/(9n^2).
%C A144454 Terms alternate between even and odd. The sequence modulo 9 reads 0,1,
               8,5,8,8,7,7,8,2,4,8,2,2,8,4,5,... (Is there a meaning to the interpretation 
               as the constant 0.1858877824822845...?) The first appearance of 3 
               (mod 9) is at a(26)=75, the second at a(55)=336. The first appearance 
               of 6 (mod 9) is at a(28)=87, the second at a(53)=312.
%F A144454 a(n)=A061039(3n).
%Y A144454 Sequence in context: A086235 A157742 A021542 this_sequence A074071 A100126 
               A132036
%Y A144454 Adjacent sequences: A144451 A144452 A144453 this_sequence A144455 A144456 
               A144457
%K A144454 nonn
%O A144454 1,3
%A A144454 Paul Curtz (bpcrtz(AT)free.fr), Oct 07 2008
%E A144454 Edited and extended by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Oct 
               24 2008

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