login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A142382 Primes congruent to 31 mod 47. 1
31, 313, 877, 971, 1723, 2099, 2287, 2381, 2663, 2851, 3697, 4073, 4261, 4637, 4919, 5107, 5483, 5953, 6047, 6329, 7457, 7927, 8209, 8867, 9337, 9431, 9619, 9901, 10559, 11311, 11593, 11969, 12157, 12251, 12721, 13003, 13567, 15259, 15541, 15823, 16481 (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) ~ 46n log n. - Charles R Greathouse IV, Jul 03 2016

MATHEMATICA

Select[Prime[Range[2500]], MemberQ[{31}, Mod[#, 47]] &] (* Vincenzo Librandi, Aug 27 2012 *)

PROG

(MAGMA) [p: p in PrimesUpTo(18000) | p mod 47 eq 31]; // Vincenzo Librandi, Aug 27 2012 *)

(PARI) is(n)=isprime(n) && n%47==31 \\ Charles R Greathouse IV, Jul 03 2016

CROSSREFS

Cf. A000040.

Sequence in context: A126552 A068813 A221306 * A137318 A182025 A221189

Adjacent sequences:  A142379 A142380 A142381 * A142383 A142384 A142385

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, Jul 11 2008

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 17 00:17 EDT 2021. Contains 345080 sequences. (Running on oeis4.)