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 A160807 a(n) = A160799(n)/4. 1
 0, 1, 5, 12, 28, 47, 75, 112, 176, 243, 319, 404, 516, 637, 785, 960, 1216, 1475, 1743, 2020, 2324, 2637, 2977, 3344, 3792, 4249, 4733, 5244, 5836, 6455, 7155, 7936, 8960, 9987, 11023, 12068, 13140, 14221, 15329, 16464, 17680, 18905, 20157 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS Let p(x) = (1 + 5x + 7x^2 + 3x^3). Then (1 + 5x + 12x^2 +28x^3 + ...) = p(x) * p(x^2) * p(x^4 * p(x^8 * ...). - Gary W. Adamson, Aug 25 2016 LINKS Table of n, a(n) for n=1..43. PROG (PARI) a(n)=sum(i=0, n-1, (n-i)*3^hammingweight(i)) \\ Charles R Greathouse IV, Aug 25 2016 CROSSREFS Cf. A160410, A161411, A160799. Essentially partial sums of A130665. Sequence in context: A172426 A145768 A162778 * A038376 A002767 A055245 Adjacent sequences: A160804 A160805 A160806 * A160808 A160809 A160810 KEYWORD nonn AUTHOR Omar E. Pol, Jun 14 2009 EXTENSIONS More terms from Max Alekseyev, Dec 12 2011 STATUS approved

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Last modified December 11 02:45 EST 2023. Contains 367717 sequences. (Running on oeis4.)