

A137236


Numbers n such that 13^n + 4 is prime.


3



0, 1, 2, 6, 10, 15, 94, 198, 219, 4543, 11511, 12638, 45606
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OFFSET

1,3


LINKS

Table of n, a(n) for n=1..13.
Henri Lifchitz and Renaud Lifchitz, PRP Records.


PROG

(PARI) for(n=0, 300, if(isprime(13^n+4), print1(n", ")))


CROSSREFS

Sequence in context: A184426 A293408 A097022 * A124198 A032426 A220453
Adjacent sequences: A137233 A137234 A137235 * A137237 A137238 A137239


KEYWORD

hard,more,nonn


AUTHOR

Jason Earls, Mar 08 2008


EXTENSIONS

a(13) from Lelio R. Paula contributed by Iain Fox, Nov 24 2017


STATUS

approved



