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!)
A141936 Primes congruent to 12 mod 25. 2
37, 137, 337, 487, 587, 787, 887, 937, 1087, 1187, 1237, 1487, 1637, 1787, 1987, 2087, 2137, 2237, 2287, 2437, 2687, 2837, 2887, 3037, 3137, 3187, 3637, 4337, 4637, 4787, 4937, 4987, 5087, 5237, 5387, 5437, 5737, 5987, 6037, 6287, 6337, 6637, 6737, 7187 (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) ~ 20n log n. - Charles R Greathouse IV, Jul 02 2016

MATHEMATICA

Select[Range[12, 20000, 25], PrimeQ] (* Vladimir Joseph Stephan Orlovsky, Jun 15 2011 *)

PROG

(MAGMA) [p: p in PrimesUpTo(8000) | p mod 25 eq 12 ]; // Vincenzo Librandi, Aug 16 2012

(PARI) is(n)=isprime(n) && n%25==12 \\ Charles R Greathouse IV, Jul 02 2016

CROSSREFS

Cf. A000040.

Sequence in context: A055783 A044369 A044750 * A244768 A013522 A142498

Adjacent sequences:  A141933 A141934 A141935 * A141937 A141938 A141939

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 11 12:33 EST 2019. Contains 329916 sequences. (Running on oeis4.)