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A142448 Primes congruent to 40 mod 49. 1
89, 383, 677, 971, 1069, 1559, 1657, 1951, 2441, 2539, 2833, 3323, 3617, 3911, 4597, 4793, 5087, 5381, 5479, 6067, 6263, 6361, 6949, 7243, 7537, 8419, 8713, 9007, 9203, 9497, 9791, 10477, 10771, 11261, 12143, 12241, 12437, 12829, 13417, 13613, 13711 (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[{40}, Mod[#, 49]] &] (* Vincenzo Librandi, Aug 28 2012 *)

PROG

(MAGMA) [p: p in PrimesUpTo(17000) | p mod 49 eq 40]; // Vincenzo Librandi, Aug 28 2012

(PARI) is(n)=isprime(n) && n%49==40 \\ Charles R Greathouse IV, Jul 03 2016

CROSSREFS

Cf. A000040.

Sequence in context: A022464 A143828 A253140 * A257118 A244777 A107192

Adjacent sequences:  A142445 A142446 A142447 * A142449 A142450 A142451

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, Jul 11 2008

STATUS

approved

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Last modified April 22 21:05 EDT 2021. Contains 343177 sequences. (Running on oeis4.)