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A175319
Half-sums (averages) of two primes with indices that are primes with prime indices.
1
5, 8, 11, 18, 21, 31, 32, 35, 45, 59, 66, 69, 79, 92, 93, 95, 105, 119, 127, 141, 144, 153, 154, 168, 171, 179, 181, 195, 202, 218, 221, 228, 229, 231, 245, 255, 277, 279, 302, 304, 305, 315, 329, 331, 354, 357, 360, 363, 370, 381, 384, 389, 418, 431, 438, 444
OFFSET
1,1
COMMENTS
The complement is A175320 which appears to be finite.
Computed at the suggestion of Jonathan Vos Post.
FORMULA
(A038580(i) + A038580(j))/2
CROSSREFS
Sequence in context: A314397 A314398 A314399 * A154486 A162612 A314400
KEYWORD
easy,nonn
AUTHOR
Jason Kimberley, Apr 04 2010
STATUS
approved