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A342185
Primes q such that 10*q-1 and 10*q+3 are cousin primes.
2
2, 11, 23, 101, 149, 227, 239, 269, 353, 479, 557, 569, 647, 683, 809, 827, 983, 1289, 1607, 1619, 1823, 1901, 1907, 2039, 2213, 2411, 2447, 2843, 2879, 2957, 2963, 3011, 3119, 3257, 3389, 3557, 3671, 3833, 3923, 4001, 4019, 4397, 4943, 5099, 5309, 5441, 5471
OFFSET
1,1
COMMENTS
A pair of cousin primes are primes of the form p and p+4 (where p+2 may or may not be a prime).
Generates cousin primes such that the last digits of the primes are 9 and 3 in base 10.
PROG
(PARI) isok(p) = isprime(p) && isprime(10*p-1) && isprime(10*p+3); \\ Michel Marcus, Mar 05 2021
CROSSREFS
KEYWORD
nonn
AUTHOR
Tamas Nagy, Mar 04 2021
STATUS
approved