A011974 2 followed by the numbers that are the sum of 2 successive primes.

2, 5, 8, 12, 18, 24, 30, 36, 42, 52, 60, 68, 78, 84, 90, 100, 112, 120, 128, 138, 144, 152, 162, 172, 186, 198, 204, 210, 216, 222, 240, 258, 268, 276, 288, 300, 308, 320, 330, 340, 352, 360, 372, 384, 390, 396, 410, 434, 450, 456, 462, 472, 480, 492, 508, 520

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn
• easy

Comments

All the terms in the sequence, except for a(2), are even. - K. D. Bajpai, Aug 26 2014

Examples

			From _K. D. Bajpai_, Aug 26 2014: (Start)
a(6) = 24 is in the sequence because prime(5) + prime(6) = 11 + 13 = 24.
a(8) = 36 is in the sequence because prime(7) + prime(8) = 17 + 19 = 36.
(End)
		

References

• Archimedeans Problems Drive, Eureka, 26 (1963), 12.

Links

• K. D. Bajpai, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A000040.

Programs

Mathematica

Join[{2},Total/@Partition[Prime[Range[40]],2,1]] (* Harvey P. Dale, May 04 2013 *)

Formula

Essentially same as A001043.

Extensions

The terms a(40) to a(56) from K. D. Bajpai, Aug 26 2014