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A142405
Primes congruent to 23 mod 48.
2
23, 71, 167, 263, 311, 359, 503, 599, 647, 743, 839, 887, 983, 1031, 1223, 1319, 1367, 1511, 1559, 1607, 1847, 2039, 2087, 2423, 2663, 2711, 2903, 2999, 3191, 3527, 3623, 3671, 3719, 3767, 3863, 3911, 4007, 4391, 4583, 4679, 4871, 4919, 4967, 5303, 5351
OFFSET
1,1
LINKS
FORMULA
a(n) ~ 16n log n. - Charles R Greathouse IV, Jul 03 2016
MATHEMATICA
Select[Prime[Range[1000]], MemberQ[{23}, Mod[#, 48]] &] (* Vincenzo Librandi, Aug 27 2012 *)
Select[Range[23, 6000, 48], PrimeQ] (* Harvey P. Dale, Aug 10 2024 *)
PROG
(Magma) [p: p in PrimesUpTo(6000) | p mod 48 eq 23]; // Vincenzo Librandi, Aug 27 2012
(PARI) is(n)=isprime(n) && n%48==23 \\ Charles R Greathouse IV, Jul 03 2016
CROSSREFS
Cf. A000040.
Sequence in context: A183012 A319052 A154619 * A139962 A248877 A321356
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Jul 11 2008
STATUS
approved