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A219617
Numbers k such that 3^k + 2^k + 10 is prime.
1
2, 4, 8, 10, 12, 34, 50, 62, 100, 128, 284, 342, 984, 4172, 4334, 7004, 10282, 15580, 17442, 19548, 21422, 22528, 51752, 73794, 82112
OFFSET
1,1
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: A155133 A331669 A154788 * A100278 A373807 A075333
KEYWORD
nonn,more
AUTHOR
Vincenzo Librandi, Dec 01 2012
EXTENSIONS
a(16)-a(17) from Bruno Berselli, Dec 06 2012
a(18)-a(23) from Michael S. Branicky, Mar 21 2023
a(24)-a(25) from Michael S. Branicky, Sep 19 2024
STATUS
approved