A163116 - OEIS

%I #5 Jul 16 2015 21:54:05

%S 2,4,5,6,9,13,20,27,36,50,65,84,105,127,152,181,215,250,290,333,376,

%T 423,473,528,590,655,720,788,857,928,1011,1097,1188,1279,1379,1480,

%U 1586,1697,1810,1928,2051,2175,2308,2441,2576,2712

%N Partial sums of A161671.

%C The n-th partial sum of the primes minus the n-th partial sum of the nonprimes.

%F a(n) = A007504(n) - A051349(n-1). - _R. J. Mathar_, Jul 31 2009

%e a(1) = A161671(1) = 2.

%e a(2) = a(1) + A161671(2) = 2 + 2 = 4.

%e a(3) = a(2) + A161671(3) = 4 + 1 = 5.

%Y Cf. A000040, A141468, A161671.

%K nonn

%O 1,1

%A _Juri-Stepan Gerasimov_, Jul 21 2009

%E Corrected from a(9) on by _R. J. Mathar_, Jul 31 2009