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A186293
(A007519(n)-1)/2.
2
8, 20, 36, 44, 48, 56, 68, 96, 116, 120, 128, 140, 156, 168, 176, 200, 204, 216, 224, 228, 260, 284, 288, 296, 300, 308, 320, 336, 380, 384, 404, 428, 440, 464, 468, 476, 488, 504, 516, 524, 548, 564, 576, 596, 600, 608
OFFSET
1,1
FORMULA
a(n) = A186294(n)-1.
a(n) = 4*A005123(n).
MATHEMATICA
(Select[1 + 8 Range@ 155, PrimeQ] -1)/2 (* Robert G. Wilson v *)
CROSSREFS
Cf. A186305.
Sequence in context: A038522 A267435 A348093 * A158865 A139570 A265207
KEYWORD
nonn,easy
AUTHOR
Marco Matosic, Feb 17 2011
STATUS
approved