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%I #14 Mar 08 2022 03:10:11
%S 0,8,8,16,80,40,56,224,32,40,440,176,208,728,280,320,1088,136,152,
%T 1520,560,616,2024,736,800,2600,312,336,3248,1160,1240,3968,1408,1496,
%U 4760,560,592,5624,1976,2080,6560,2296,2408,7568,880,920
%N First 6-fold decimation of A061039. First bisection of A144454.
%H G. C. Greubel, <a href="/A145909/b145909.txt">Table of n, a(n) for n = 0..5000</a>
%F a(n) = A061039(6*n+3).
%p A145909 := proc(n) ; A061039(6*n+3) end proc:
%p seq(A145909(n),n=0..80) ; # _R. J. Mathar_, Jan 06 2011
%t Numerator[(1/9)*(1 - 1/(2*Range[0,75]+1)^2)] (* _G. C. Greubel_, Mar 08 2022 *)
%o (Sage) [numerator((1/9)*(1 - 1/(2*n+1)^2)) for n in (0..75)] # _G. C. Greubel_, Mar 08 2022
%Y Cf. A061039, A144454.
%K nonn,easy,less
%O 0,2
%A _Paul Curtz_, Oct 24 2008
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