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A174288 Primes p such that 8*2^(2p)-1 is also prime. 0
2, 5, 7, 29, 43, 1607 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

These are the primes in A139481. [From R. J. Mathar, Mar 17 2010]

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

For p=2, 8*2^4-1=127; p=5, 8*2^10-1=8191; p=7, 8*2^14-1=131071

PROG

(MAGMA) [p: p in PrimesUpTo(4500)| IsPrime(8*2^(2*p)-1)]

CROSSREFS

Sequence in context: A082013 A171831 A192560 * A215211 A118786 A083777

Adjacent sequences:  A174285 A174286 A174287 * A174289 A174290 A174291

KEYWORD

nonn

AUTHOR

Vincenzo Librandi, Mar 15 2010

STATUS

approved

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Last modified September 25 19:48 EDT 2017. Contains 292500 sequences.