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A142425
Primes congruent to 13 mod 49.
1
13, 307, 503, 601, 797, 1091, 1483, 1777, 1973, 2267, 2659, 2953, 3541, 4129, 4423, 5011, 5501, 6089, 6481, 6971, 7069, 7559, 7853, 7951, 8147, 8539, 9029, 9127, 9323, 9421, 10009, 10303, 10499, 10597, 10891, 11087, 11969, 12263, 13537, 13831, 14321, 14419
OFFSET
1,1
LINKS
FORMULA
a(n) ~ 42n log n. - Charles R Greathouse IV, Jul 03 2016
MATHEMATICA
Select[Prime[Range[2500]], MemberQ[{13}, Mod[#, 49]] &] (* Vincenzo Librandi, Aug 28 2012 *)
Select[Range[13, 15000, 49], PrimeQ] (* Harvey P. Dale, Mar 10 2015 *)
PROG
(Magma) [p: p in PrimesUpTo(16000) | p mod 49 eq 13]; // Vincenzo Librandi, Aug 28 2012
(PARI) is(n)=isprime(n) && n%49==13 \\ Charles R Greathouse IV, Jul 03 2016
CROSSREFS
Cf. A000040.
Sequence in context: A009119 A322734 A331657 * A234236 A183522 A119131
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Jul 11 2008
STATUS
approved