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Partial sums of A087207.
2

%I #8 Aug 18 2021 21:46:30

%S 0,1,3,4,8,11,19,20,22,27,43,46,78,87,93,94,158,161,289,294,304,321,

%T 577,580,584,617,619,628,1140,1147,2171,2172,2190,2255,2267,2270,4318,

%U 4447,4481,4486,8582,8593,16785,16802,16808,17065,33449,33452,33460,33465,33531,33564,66332,66335,66355,66364

%N Partial sums of A087207.

%H N. J. A. Sloane, <a href="/A288566/b288566.txt">Table of n, a(n) for n = 1..10000</a>

%F G.f.: (1/(1 - x)) * Sum_{k>=1} 2^(k-1) * x^prime(k) / (1 - x^prime(k)). - _Ilya Gutkovskiy_, Aug 18 2021

%Y Cf. A087207.

%K nonn

%O 1,3

%A _N. J. A. Sloane_, Jun 24 2017