login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A142177 Primes congruent to 31 mod 39. 1
31, 109, 421, 499, 577, 733, 811, 967, 1123, 1201, 1279, 1669, 1747, 2137, 2293, 2371, 2683, 2917, 3229, 3307, 3463, 3541, 3697, 3853, 3931, 4243, 4789, 5023, 5101, 5179, 5413, 5569, 5647, 5881, 6037, 6271, 6427, 6661, 7129, 7207, 7753, 8221, 8377, 8689 (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) ~ 24n log n. - Charles R Greathouse IV, Jul 03 2016

MATHEMATICA

Select[Prime[Range[3000]], MemberQ[{31}, Mod[#, 39]]&] (* Vincenzo Librandi, Aug 20 2012 *)

PROG

(MAGMA) [p: p in PrimesUpTo(10000) | p mod 39 eq 31 ]; // Vincenzo Librandi, Aug 20 2012

(PARI) is(n)=isprime(n) && n%39==31 \\ Charles R Greathouse IV, Jul 03 2016

CROSSREFS

Cf. A000040.

Sequence in context: A141877 A057230 A225397 * A281194 A063397 A044282

Adjacent sequences:  A142174 A142175 A142176 * A142178 A142179 A142180

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 May 21 10:48 EDT 2019. Contains 323443 sequences. (Running on oeis4.)