%I A133766
%S A133766 15,315,1287,3315,6783,12075,19575,29667,42735,59163,79335,103635,
%T A133766 132447,166155,205143,249795,300495,357627,421575,492723,571455,658155,
%U A133766 753207,856995,969903,1092315,1224615,1367187,1520415,1684683,1860375
%N A133766 a(n) = (4*n+1)*(4*n+3)*(4*n+5).
%H A133766 <a href="Sindx_Rea.html#recLCC">Index entries for sequences related to 
               linear recurrences with constant coefficients</a>
%F A133766 G.f.: G(x) = 3*(5+85*x+39*x^2-x^3)/(1-x)^4 E.g.f: E(x):=(15+300*x+336*x^2+64*x^3)*exp(x) 
               sum(4/((4*m+1)*(4*m+3)*(4*m+5)),m=0..infinity) = (Pi-2)/4
%p A133766 seq((4*n+1)*(4*n+3)*(4*n+5),n=0..40);
%Y A133766 Sequence in context: A135390 A105491 A158533 this_sequence A112489 A062757 
               A088913
%Y A133766 Adjacent sequences: A133763 A133764 A133765 this_sequence A133767 A133768 
               A133769
%K A133766 easy,nonn
%O A133766 0,1
%A A133766 Miklos Kristof (kristmikl(AT)freemail.hu), Jan 02 2008