A251241 Indices of prime powers in A098550.

1, 2, 3, 4, 5, 6, 9, 11, 14, 15, 19, 22, 23, 29, 30, 40, 43, 51, 57, 61, 62, 65, 79, 87, 88, 94, 101, 114, 124, 127, 132, 137, 142, 153, 158, 167, 171, 175, 187, 194, 204, 215, 222, 233, 238, 247, 269, 273, 274, 277, 283, 296, 301, 313, 324, 329, 338, 355

Offset

1,2

Comments

A010055(A098550(a(n))) = 1; for n > 0: A100995(A098550(a(n))) > 0;

A098550(a(n)) = A000961(n).

Links

Reinhard Zumkeller, Table of n, a(n) for n = 1..5000

Prog

(Haskell)
a251241 n = a251241_list !! (n-1)
a251241_list = filter ((== 1) . a010055 . a098550) [1..]

Crossrefs

Cf. A098550, A000961, A010055, A100995, subsequences: A251239 and A251240.

Sequence in context: A119952 A364698 A102571 * A064278 A220570 A341057

Adjacent sequences: A251238 A251239 A251240 * A251242 A251243 A251244

Keyword

nonn

Author

Reinhard Zumkeller, Dec 02 2014

Status

approved