A257458 Indices of prime powers in A257339.

1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20, 22, 23, 25, 27, 30, 31, 34, 35, 38, 42, 45, 47, 48, 49, 52, 53, 54, 60, 61, 63, 64, 66, 69, 70, 71, 73, 74, 81, 83, 85, 87, 89, 92, 94, 97, 100, 102, 108, 112, 114, 116, 117, 120, 125, 127, 128

Offset: 1

Author

Reinhard Zumkeller, Apr 24 2015

Keywords

• nonn

Comments

A010055(a(n)) = 1.

Links

• Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A257339, A010055, A257457.

Programs

Haskell

a257458 n = a257458_list !! (n-1)
a257458_list = filter ((== 1) . a010055 . a257339) [1..]