A153478 Sum of first n isolated (or single) primes A007510.

2, 25, 62, 109, 162, 229, 308, 391, 480, 577, 690, 817, 948, 1105, 1268, 1435, 1608, 1819, 2042, 2275, 2526, 2783, 3046, 3323, 3616, 3923, 4240, 4571, 4908, 5261, 5620, 5987, 6360, 6739, 7122, 7511, 7908, 8309, 8718, 9157, 9600

Offset: 1

Author

Omar E. Pol, Dec 27 2008

Keywords

• easy
• nonn

Links

• G. C. Greubel, Table of n, a(n) for n = 1..1000
• Omar E. Pol, Determinacion geometrica de los numeros primos y perfectos

Crossrefs

Cf. A000040, A007504, A007510, A048598, A071148, A153474.

Programs

Mathematica

Accumulate[Select[Prime[Range[100]],!PrimeQ[#-2]&&!PrimeQ[#+2]&]]  (* Harvey P. Dale, Feb 08 2011 *)