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A142537
Primes congruent to 7 mod 53.
1
7, 113, 431, 643, 1279, 1597, 2339, 2551, 2657, 3187, 3823, 3929, 5413, 5519, 6367, 6473, 6791, 7109, 7321, 7639, 8699, 9547, 10289, 10501, 10607, 11243, 12197, 12409, 13151, 13469, 13681, 13999, 14423, 14741, 15271, 15377, 15907, 16649, 17497, 17921, 18133
OFFSET
1,1
LINKS
FORMULA
a(n) ~ 52n log n. - Charles R Greathouse IV, Jul 03 2016
MATHEMATICA
Select[Prime[Range[2600]], MemberQ[{7}, Mod[#, 53]] &] (* Vincenzo Librandi, Aug 29 2012 *)
Select[Range[7, 20000, 53], PrimeQ] (* Harvey P. Dale, Feb 27 2023 *)
PROG
(Magma) [p: p in PrimesUpTo(20000) | p mod 53 eq 7]; // Vincenzo Librandi, Aug 29 2012
(PARI) is(n)=isprime(n) && n%53==7 \\ Charles R Greathouse IV, Jul 03 2016
CROSSREFS
Cf. A000040.
Sequence in context: A270121 A079296 A081531 * A084974 A156240 A152927
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Jul 11 2008
STATUS
approved