A343859 Partial sums of the primes excluding 3.

2, 7, 14, 25, 38, 55, 74, 97, 126, 157, 194, 235, 278, 325, 378, 437, 498, 565, 636, 709, 788, 871, 960, 1057, 1158, 1261, 1368, 1477, 1590, 1717, 1848, 1985, 2124, 2273, 2424, 2581, 2744, 2911, 3084, 3263, 3444, 3635, 3828, 4025, 4224, 4435, 4658, 4885, 5114, 5347

Offset: 1

Author

Omar E. Pol, May 01 2021

Keywords

• nonn
• easy

Comments

Partial sums of the primes congruent to {1, 2} mod 3.

Links

• Paolo Xausa, Table of n, a(n) for n = 1..10000

Crossrefs

Partial sums of A045344.

Apart from the initial term this is the column 4 of A343809.

Cf. A007504.

Programs

Mathematica

Accumulate[Join[{2},Prime[Range[3,100]]]] (* Paolo Xausa, Sep 01 2023 *)

Formula

a(n) = A007504(n+1) - 3.