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A219617 Numbers n such that 3^n + 2^n + 10 is prime. 1
2, 4, 8, 10, 12, 34, 50, 62, 100, 128, 284, 342, 984, 4172, 4334, 7004, 10282 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..17.

MATHEMATICA

Select[Range[2, 15000, 2], PrimeQ[3^# + 2^# + 10] &]

PROG

(PARI) is(n)=ispseudoprime(3^n+2^n+10) \\ Charles R Greathouse IV, Jun 13 2017

CROSSREFS

Cf. A176928 (associated primes).

Sequence in context: A089953 A155133 A154788 * A100278 A075333 A297250

Adjacent sequences:  A219614 A219615 A219616 * A219618 A219619 A219620

KEYWORD

nonn

AUTHOR

Vincenzo Librandi, Dec 01 2012

EXTENSIONS

a(16)-a(17) from Bruno Berselli, Dec 06 2012

STATUS

approved

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Last modified September 21 21:58 EDT 2019. Contains 327282 sequences. (Running on oeis4.)