OFFSET
1,1
LINKS
Zak Seidov, Table of n, a(n) for n = 1..157
EXAMPLE
15 + {2, 4, 8, 16, 32, 64} = {17, 19, 23, 31, 47, 79} all primes.
PROG
(PARI) isok(n) = isprime(n+15) && isprime(n^2 + 15) && isprime(n^3 + 15) && isprime(n^4 + 15) && isprime(n^5 + 15) && isprime(n^6 + 15); \\ Michel Marcus, Dec 28 2014
CROSSREFS
KEYWORD
nonn
AUTHOR
Zak Seidov, Dec 27 2014
STATUS
approved