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A273804 Primes of the form 2^(2^n) + 301. 1
317, 557, 65837, 4294967597, 115792089237316195423570985008687907853269984665640564039457584007913129640237 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Terms given correspond to n = 2, 3, 4, 5 and 8.

Next term >= 2^2^23 + 301. - Charles R Greathouse IV, Jun 07 2016

LINKS

Table of n, a(n) for n=1..5.

MATHEMATICA

Select[Table[2^(2^n) + 301, {n, 0, 16}], PrimeQ]

PROG

(MAGMA) [a: n in [0..16] | IsPrime(a) where a is 2^(2^n)+301];

(PARI) for(n=1, 20, if(ispseudoprime(t=2^2^n+301), print1(t", "))) \\ Charles R Greathouse IV, Jun 07 2016

CROSSREFS

Cf. similar sequences listed in A273547.

Sequence in context: A142003 A064396 A243958 * A142130 A278279 A058002

Adjacent sequences:  A273801 A273802 A273803 * A273805 A273806 A273807

KEYWORD

nonn

AUTHOR

Vincenzo Librandi, Jun 02 2016

STATUS

approved

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Last modified July 17 16:58 EDT 2019. Contains 325107 sequences. (Running on oeis4.)