A309269 Numbers that are the sum of two successive prime powers.

3, 5, 7, 9, 12, 15, 17, 20, 24, 29, 33, 36, 42, 48, 52, 56, 60, 63, 69, 78, 84, 90, 96, 102, 112, 120, 125, 131, 138, 144, 152, 160, 164, 172, 186, 198, 204, 210, 216, 222, 234, 246, 252, 255, 259, 268, 276, 288, 300, 308, 320, 330, 336, 342, 352, 360, 372, 384, 390, 396

Offset: 1

Author

Ilya Gutkovskiy, Jul 20 2019

Keywords

• nonn

Links

• Amiram Eldar, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A000961, A001043, A024918, A057820.

Programs

Mathematica

Join[{3}, Total /@ Partition[Select[Range[200], PrimePowerQ], 2, 1]]

Formula

a(n) = A000961(n) + A000961(n+1).