A237438 Double Hex-primes: let f(n) = A102489(n); then sequence lists primes p such that f(p) and f(f(p)) are also primes.

2, 3, 5, 7, 11, 43, 47, 53, 59, 61, 89, 97, 101, 139, 151, 167, 199, 241, 251, 257, 269, 281, 337, 373, 443, 557, 599, 607, 647, 653, 829, 971, 1051, 1093, 1163, 1223, 1279, 1327, 1433, 1459, 1499, 1549, 1583, 1597, 1607

Offset

1,1

Comments

This sequence is a subset of A103144.

Links

Andreas Boe, Table of n, a(n) for n = 1..6084

Example

Dec61=prime -> Hex61=Dec97=prime -> Hex97=Dec151=prime.

Crossrefs

Cf. A102489.

Cf. A103144 (Hex-primes), A237439 (Triple Hex-primes), A237440 (Quadruple Hex-primes), A237441 (Quintuple Hex-primes).

Sequence in context: A141500 A215162 A059999 * A040130 A127727 A232183

Adjacent sequences: A237435 A237436 A237437 * A237439 A237440 A237441

Keyword

nonn,base

Author

Andreas Boe, Feb 07 2014

Status

approved