A163116 - OEIS

A163116

Partial sums of A161671.

2, 4, 5, 6, 9, 13, 20, 27, 36, 50, 65, 84, 105, 127, 152, 181, 215, 250, 290, 333, 376, 423, 473, 528, 590, 655, 720, 788, 857, 928, 1011, 1097, 1188, 1279, 1379, 1480, 1586, 1697, 1810, 1928, 2051, 2175, 2308, 2441, 2576, 2712

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OFFSET

1,1

COMMENTS

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

LINKS

Table of n, a(n) for n=1..46.

FORMULA

a(n) = A007504(n) - A051349(n-1). - R. J. Mathar, Jul 31 2009

EXAMPLE

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

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

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

CROSSREFS

Cf. A000040, A141468, A161671.

Sequence in context: A341496 A056635 A288429 * A003306 A250305 A136585

Adjacent sequences: A163113 A163114 A163115 * A163117 A163118 A163119

KEYWORD

nonn

AUTHOR

Juri-Stepan Gerasimov, Jul 21 2009

EXTENSIONS

Corrected from a(9) on by R. J. Mathar, Jul 31 2009

STATUS

approved