A100479 a(n) = prime(2n-1) + prime(2n).

5, 12, 24, 36, 52, 68, 84, 100, 120, 138, 152, 172, 198, 210, 222, 258, 276, 300, 320, 340, 360, 384, 396, 434, 456, 472, 492, 520, 540, 558, 576, 618, 630, 668, 696, 712, 740, 762, 786, 810, 840, 864, 882, 906, 924, 946, 978, 1002, 1030, 1064, 1104, 1132

Offset

1,1

Links

G. C. Greubel, Table of n, a(n) for n = 1..10000

C. Caldwell Lists of small primes.

Formula

a(n) = A001043(2n-1). - R. J. Mathar, Apr 20 2009

a(n) = A031368(n) + A031215(n). - G. C. Greubel, Apr 05 2023

Mathematica

Total/@Partition[Prime[Range[110]], 2] (* Harvey P. Dale, Apr 20 2016 *)

Prog

(Magma) [(&+[NthPrime(2*n+j-1): j in [0..1]]): n in [1..70]]; // G. C. Greubel, Apr 05 2023
(SageMath) [sum(nth_prime(2*n+j-1) for j in range(2)) for n in range(1, 71)] # G. C. Greubel, Apr 05 2023

Crossrefs

Cf. A000040, A001043, A031215, A031368.

Sequence in context: A270681 A212540 A344510 * A018806 A101425 A191831

Adjacent sequences: A100476 A100477 A100478 * A100480 A100481 A100482

Keyword

nonn

Author

Jun Mizuki (suzuki32(AT)sanken.osaka-u.ac.jp), Nov 22 2004

Status

approved