1,1

Odd terms in A124867. - R. J. Mathar, Jun 09 2014

Table of n, a(n) for n=1..60.

15 = 3 + 5 + 7.

Union[Total /@ Subsets[Prime[Range[2, 30]], {3}]]

Cf. A224534 (primes in this sequence).

Sequence in context: A167322 A217406 A181664 * A225861 A329184 A077349

Adjacent sequences: A224532 A224533 A224534 * A224536 A224537 A224538

nonn

T. D. Noe, Apr 15 2013

"Odd" added by Irina Gerasimova, Apr 15 2013

approved