A077126 - OEIS

A077126

Sum of even-indexed primes.

3, 10, 23, 42, 71, 108, 151, 204, 265, 336, 415, 504, 605, 712, 825, 956, 1095, 1246, 1409, 1582, 1763, 1956, 2155, 2378, 2607, 2846, 3097, 3360, 3631, 3912, 4205, 4516, 4833, 5170, 5519, 5878, 6251, 6634, 7031, 7440, 7861, 8294, 8737, 9194, 9657, 10136, 10627

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Partial sums of A031215. - Michel Marcus, Oct 27 2015

LINKS

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

EXAMPLE

p_1=2, p_2=3, p_3=5 and p_4=7, therefore a(2) = p_2 + p_4 = 3 + 7 = 10.

MATHEMATICA

A077126list[nmax_]:=Accumulate[Prime[Range[2, 2nmax, 2]]]; A077126list[100] (* Paolo Xausa, Aug 28 2023 *)

PROG