A256561 Indices of primes in A166133.

2, 4, 8, 6, 10, 16, 21, 19, 23, 40, 38, 32, 42, 44, 48, 54, 60, 62, 68, 80, 78, 72, 91, 111, 114, 88, 86, 120, 118, 130, 137, 133, 150, 152, 168, 162, 97, 192, 188, 182, 176, 186, 160, 215, 280, 291, 122, 226, 222, 220, 240, 263, 275, 300, 245, 277, 329, 257

Offset: 1

Author

Reinhard Zumkeller, Apr 02 2015

Keywords

• nonn

Links

• Reinhard Zumkeller and Ray Chandler, Table of n, a(n) for n = 1..10000 (first 1000 terms from Reinhard Zumkeller)

Crossrefs

Cf. A166133, A256563, A255833, A000040.

Programs

Haskell

a256561 = (+ 1) . fromJust . (`elemIndex` a166133_list) . a000040

Formula

a(n) = A255833(A000040(n)). - Ray Chandler, Apr 14 2015