login
A339924
Numbers k such that 14^k - 3 is prime.
1
1, 2, 3, 10, 18, 19, 27, 122, 184, 347, 448, 542, 1685, 5618, 6208, 9867, 25522, 37688, 47067, 79195, 114592, 251797
OFFSET
1,2
EXAMPLE
1 is a term since 14^1 - 3 = 11 is a prime.
MATHEMATICA
Do[ If[ PrimeQ[ 14^n - 3], Print[n]], {n, 0, 300000}]
PROG
(PARI) is(n)=isprime(14^n - 3)
CROSSREFS
Cf. A339923.
Sequence in context: A363430 A350913 A066915 * A333673 A070253 A147673
KEYWORD
nonn,more
AUTHOR
Paul Bourdelais, Dec 23 2020
STATUS
approved