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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..22.

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: A192798 A143609 A066915 * A333673 A070253 A147673

Adjacent sequences:  A339921 A339922 A339923 * A339925 A339926 A339927

KEYWORD

nonn,more

AUTHOR

Paul Bourdelais, Dec 23 2020

STATUS

approved

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Last modified September 22 19:36 EDT 2021. Contains 347608 sequences. (Running on oeis4.)