login
A257458
Indices of prime powers in A257339.
3
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
1,2
COMMENTS
A010055(a(n)) = 1.
LINKS
PROG
(Haskell)
a257458 n = a257458_list !! (n-1)
a257458_list = filter ((== 1) . a010055 . a257339) [1..]
CROSSREFS
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Apr 24 2015
STATUS
approved