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A094482 Primes of form 2^j + 137^j. 2
2, 139, 18773, 124097929967680577 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The number j must be zero or a power of 2.  Checked j being powers of two through 2^20. Thus a(5) > 10^4400000. Primes of this magnitude are rare (about 1 in 10.3 million), so chance of finding one is remote with today's computer algorithms and speeds. - Robert Price, Apr 29 2013

LINKS

Table of n, a(n) for n=1..4.

EXAMPLE

j=0: p=1+1=2; j=1: p=2+59=61; j=2: p=4+18769=18773; j=8: p=256+37^8=124097929967680577; the j exponents are powers of 2.

CROSSREFS

Cf. A082101, A094473-A094480, A045637.

Sequence in context: A054681 A152509 A265462 * A265176 A101232 A093887

Adjacent sequences:  A094479 A094480 A094481 * A094483 A094484 A094485

KEYWORD

nonn

AUTHOR

Labos Elemer, Jun 01 2004

STATUS

approved

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Last modified August 8 06:27 EDT 2020. Contains 336290 sequences. (Running on oeis4.)