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A153478 Sum of first n isolated (or single) primes A007510. 1
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

G. C. Greubel, Table of n, a(n) for n = 1..1000

Omar E. Pol, Determinacion geometrica de los numeros primos y perfectos

MATHEMATICA

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

CROSSREFS

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

Sequence in context: A248546 A038834 A041071 * A226491 A062933 A269232

Adjacent sequences:  A153475 A153476 A153477 * A153479 A153480 A153481

KEYWORD

easy,nonn

AUTHOR

Omar E. Pol, Dec 27 2008

STATUS

approved

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Last modified April 28 23:30 EDT 2017. Contains 285604 sequences.