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A142184 Primes congruent to 3 mod 40. 1
3, 43, 83, 163, 283, 443, 523, 563, 643, 683, 883, 1123, 1163, 1283, 1483, 1523, 1723, 2003, 2083, 2203, 2243, 2683, 2803, 2843, 2963, 3083, 3163, 3203, 3323, 3643, 3803, 3923, 4003, 4243, 4283, 4363, 4483, 4523, 4603, 4643, 4723, 5003, 5323, 5443, 5483 (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) ~ 16n log n. - Charles R Greathouse IV, Jul 03 2016

MATHEMATICA

Select[Prime[Range[2000]], MemberQ[{3}, Mod[#, 40]]&] (* Vincenzo Librandi, Aug 20 2012 *)

Select[Range[3, 5500, 40], Prime (* Harvey P. Dale, Jun 10 2015 *)

PROG

(MAGMA)[p: p in PrimesUpTo(7000) | p mod 40 eq 3]; // Vincenzo Librandi, Aug 20 2012

(PARI) is(n)=isprime(n) && n%40==3 \\ Charles R Greathouse IV, Jul 03 2016

CROSSREFS

Cf. A000040.

Sequence in context: A185632 A006033 A246994 * A199348 A002551 A127930

Adjacent sequences:  A142181 A142182 A142183 * A142185 A142186 A142187

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, Jul 11 2008

STATUS

approved

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Last modified June 19 00:55 EDT 2019. Contains 324217 sequences. (Running on oeis4.)