A239523 Prime powers (A025475) such that the distances to the two nearest prime powers are primes.

1, 25, 27, 32, 128, 512, 2048, 8192, 32768, 562949953421312

Offset

1,2

Comments

A subsequence of A239522.

a(4)...a(10) are powers of 2, a(10) = 2^49.

Links

Table of n, a(n) for n=1..10.

Crossrefs

Cf. A025475, A239520 - A239522.

Sequence in context: A350181 A183982 A287763 * A361821 A129820 A096522

Adjacent sequences: A239520 A239521 A239522 * A239524 A239525 A239526

Keyword

nonn,more

Author

Alex Ratushnyak, Mar 20 2014

Status

approved