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

 

Logo

Please make a donation to keep the OEIS running. We are now in our 55th year. In the past year we added 12000 new sequences and reached 8000 citations (which often say "discovered thanks to the OEIS"). We need to raise money to hire someone to manage submissions, which would reduce the load on our editors and speed up editing.
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A142091 Primes congruent to 23 mod 35. 2
23, 163, 233, 373, 443, 653, 863, 1213, 1283, 1423, 1493, 1913, 2053, 2333, 2473, 2543, 2683, 2753, 2963, 3313, 3593, 3733, 3803, 3943, 4013, 4153, 4363, 4643, 4783, 4993, 5273, 5413, 5483, 5623, 5693, 5903, 6043, 6113, 6323, 6673, 6883, 7583, 7723, 7793 (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 02 2016

MATHEMATICA

Select[Range[23, 20000, 35], PrimeQ] (* Vladimir Joseph Stephan Orlovsky, Jun 29 2011 *)

Select[Prime[Range[3000]], MemberQ[{23}, Mod[#, 35]]&] (* Vincenzo Librandi, Aug 19 2012 *)

PROG

(MAGMA) [p: p in PrimesUpTo(9000) | p mod 35 eq 23 ]; // Vincenzo Librandi, Aug 19 2012

(PARI) is(n)=isprime(n) && n%35==23 \\ Charles R Greathouse IV, Jul 02 2016

CROSSREFS

Cf. A000040.

Sequence in context: A263475 A214895 A042022 * A168027 A155842 A248698

Adjacent sequences:  A142088 A142089 A142090 * A142092 A142093 A142094

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 December 9 19:51 EST 2019. Contains 329879 sequences. (Running on oeis4.)