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!)
A142419 Primes congruent to 6 mod 49. 1
251, 349, 643, 839, 937, 1231, 1427, 1721, 2113, 2309, 2897, 3191, 3583, 3779, 3877, 4073, 4759, 5347, 5641, 6131, 6229, 6719, 7013, 7307, 7699, 7993, 8287, 8581, 9463, 10247, 10639, 11423, 11717, 12011, 12109, 12697, 12893, 13187, 13873, 14461, 14657 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
FORMULA
a(n) ~ 42n log n. - Charles R Greathouse IV, Jul 03 2016
MATHEMATICA
Select[Prime[Range[2500]], MemberQ[{6}, Mod[#, 49]] &] (* Vincenzo Librandi, Aug 27 2012 *)
Select[Range[6, 15000, 49], PrimeQ] (* Harvey P. Dale, Oct 23 2015 *)
PROG
(Magma) [p: p in PrimesUpTo(16000) | p mod 49 eq 6]; // Vincenzo Librandi, Aug 27 2012
(PARI) is(n)=isprime(n) && n%49==6 \\ Charles R Greathouse IV, Jul 03 2016
CROSSREFS
Cf. A000040.
Sequence in context: A165281 A033449 A271581 * A364968 A161854 A234928
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 April 13 10:11 EDT 2024. Contains 371640 sequences. (Running on oeis4.)