A268391 Numbers of the form p^A001317(k) where p is prime and k >= 0.

2, 3, 5, 7, 8, 11, 13, 17, 19, 23, 27, 29, 31, 32, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 125, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 243, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313

Offset

1,1

Comments

Sequence A268392 sorted into ascending order.

Links

Antti Karttunen, Table of n, a(n) for n = 1..10000

Prog

(Scheme, with Antti Karttunen's IntSeq-library)
(define A268391 (MATCHING-POS 1 1 (lambda (n) (and (= 1 (A001221 n)) (= 1 (A268384 (A067029 n)))))))

Crossrefs

Cf. A001221, A001317, A050376, A067029, A268384, A268392.

Cf. A000040 (subsequence).

Subsequence of A000961 and A246551.

Differs from A171561 and A246551 for the first time at n=36, which here a(36) = 131.

Sequence in context: A359891 A171561 A246551 * A174895 A186285 A190855

Adjacent sequences: A268388 A268389 A268390 * A268392 A268393 A268394

Keyword

nonn

Author

Antti Karttunen, Feb 10 2016

Status

approved