Voozh

A142664

Primes congruent to 55 mod 56.

167, 223, 503, 727, 839, 1063, 1231, 1399, 1511, 1567, 1847, 2239, 2351, 2687, 3023, 3079, 3191, 3359, 3527, 3583, 3863, 3919, 4423, 4591, 4703, 4759, 4871, 5039, 5431, 5711, 5879, 6047, 6271, 6551, 6607, 6719, 7559, 7727, 7951, 8231, 8287, 8623, 9127

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

OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

MATHEMATICA

Select[Prime[Range[1300]], MemberQ[{55}, Mod[#, 56]] &] (* Vincenzo Librandi, Sep 01 2012 *)

PROG

(Magma) [p: p in PrimesUpTo(10000) | p mod 56 eq 55 ]; // Vincenzo Librandi, Sep 01 2012

(Python)

from sympy import isprime

def isA142664(n): return n%56==55 and isprime(n) # Aidan Chen, Feb 05 2026