OFFSET
1,1
COMMENTS
Prime numbers p such that 2*p - (p mod 10) is prime.
EXAMPLE
Prime number 19 is a term since 2 * 19 - (19 mod 10) = 2 * 19 - 9 = 29, a prime.
PROG
(PARI) forprime(p = 2, 1000, if(isprime(2*p - p%10), print1(p", ")))
(Magma) [p:p in PrimesUpTo(750)| IsPrime(2*p-(p mod 10))]; // Marius A. Burtea, Feb 07 2020
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Dimitris Valianatos, Feb 06 2020
STATUS
approved