Search: id:A133725
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%I A133725
%S A133725 1,4,11,17,34,35,69,70,105,106,175,142,246,213,284,284,424,321,531,428,
%T A133725 570,535,781,572,890,750,963,858,1246,860,1425,1144,1430,1288,1716,1290,
%U A133725 2034,1611,2004,1720,2500,1722,2751,2150,2580,2365,3289,2296,3507,2690
%N A133725 A054525 * A000326.
%F A133725 Mobius transform of the pentagonal numbers.
%e A133725 a(4) = 17 = (0, -1, 0, 1) dot (1, 5, 12, 22) = (0, -5, 0, 22).
%p A133725 read("transforms") : A000326 := proc(n) n*(3*n-1)/2 ; end: a000326 := 
               [seq(A000326(n),n=1..300)] ; a133725 := MOBIUS(a000326) ; for i from 
               1 to nops(a133725) do printf("%d,",op(i,a133725)) ; od: [From R. 
               J. Mathar (mathar(AT)strw.leidenuniv.nl), Jan 19 2009]
%Y A133725 Cf. A000326, A054525.
%Y A133725 Sequence in context: A063237 A026381 A063556 this_sequence A050395 A059771 
               A043409
%Y A133725 Adjacent sequences: A133722 A133723 A133724 this_sequence A133726 A133727 
               A133728
%K A133725 nonn
%O A133725 1,2
%A A133725 Gary W. Adamson (qntmpkt(AT)yahoo.com), Sep 21 2007
%E A133725 More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jan 19 2009

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