The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A141891 Primes congruent to 8 mod 21. 1
29, 71, 113, 197, 239, 281, 449, 491, 617, 659, 701, 743, 827, 911, 953, 1163, 1289, 1373, 1499, 1583, 1667, 1709, 1877, 2003, 2087, 2129, 2213, 2297, 2339, 2381, 2423, 2549, 2591, 2633, 2801, 2843, 2927, 2969, 3011, 3137, 3221, 3347, 3389, 3557, 3767, 3851 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
FORMULA
a(n) ~ 12n log n. - Charles R Greathouse IV, Jul 03 2016
MATHEMATICA
Select[Range[8, 5000, 21], PrimeQ] (* Vladimir Joseph Stephan Orlovsky, Apr 04 2011 *)
PROG
(Magma) [ p: p in PrimesUpTo(5000) | p mod 21 eq 8 ]; // Vincenzo Librandi, Apr 05 2011
(PARI) is(n)=isprime(n) && n%21==8 \\ Charles R Greathouse IV, Jul 03 2016
CROSSREFS
Sequence in context: A123372 A031343 A155483 * A144313 A218561 A099775
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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 25 16:44 EDT 2024. Contains 372801 sequences. (Running on oeis4.)