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A142454 Primes congruent to 47 mod 49. 1
47, 439, 733, 929, 1223, 1321, 1811, 2203, 2399, 2693, 2791, 3673, 3967, 4261, 4457, 4751, 5437, 5927, 6221, 6907, 7103, 7691, 7789, 8377, 8573, 8867, 9161, 9749, 10141, 10337, 10631, 10729, 11317, 11807, 12101, 12689, 12983, 13669, 13963, 14159, 14551 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

FORMULA

a(n) ~ 42n log n. - Charles R Greathouse IV, Jul 03 2016

MATHEMATICA

Select[Prime[Range[2500]], MemberQ[{47}, Mod[#, 49]] &] (* Vincenzo Librandi, Aug 28 2012 *)

PROG

(MAGMA) [p: p in PrimesUpTo(17000) | p mod 49 eq 47]; // Vincenzo Librandi, Aug 28 2012

(PARI) is(n)=isprime(n) && n%49==47 \\ Charles R Greathouse IV, Jul 03 2016

CROSSREFS

Cf. A000040.

Sequence in context: A324625 A239539 A217119 * A200954 A126300 A012149

Adjacent sequences:  A142451 A142452 A142453 * A142455 A142456 A142457

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, Jul 11 2008

STATUS

approved

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Last modified January 27 03:09 EST 2022. Contains 350601 sequences. (Running on oeis4.)