A171561 (n-th prime number)^(n-th non-single or nonisolated number) with duplicates removed.

1, 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, 128, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 243

Offset

1,2

Comments

The definition is: numbers of the form A000040(i)^A167707(j), sorted, without repetition, any i,j>=1. [From R. J. Mathar, May 22 2010]

Links

Table of n, a(n) for n=1..60.

Example

a(1)=2^0=1, a(2)=2^1=2, a(3)=3^1=3, a(4)=5^1=5, a(5)=7^1=7, a(6)=2^3=8.

Crossrefs

Cf. A000040 (the prime numbers), A167707 (the non-single or nonisolated numbers).

Sequence in context: A060634 A279457 A359891 * A246551 A268391 A174895

Adjacent sequences: A171558 A171559 A171560 * A171562 A171563 A171564

Keyword

nonn

Author

Juri-Stepan Gerasimov, Dec 11 2009, Dec 14 2009

Extensions

Entries checked by R. J. Mathar, May 22 2010

Status

approved