login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A142222 Primes congruent to 25 mod 41. 1
107, 271, 353, 599, 1009, 1091, 1583, 1747, 1993, 2239, 2731, 3469, 3797, 4289, 5273, 5437, 5519, 5683, 6011, 6257, 6421, 7159, 7487, 8389, 8963, 9127, 9209, 9619, 10111, 10193, 10357, 11177, 11423, 11587, 11833, 12161, 12653, 12899, 13063, 13309, 13883 (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) ~ 40n log n. - Charles R Greathouse IV, Jul 03 2016

MATHEMATICA

Select[Prime[Range[5000]], MemberQ[{25}, Mod[#, 41]]&] (* Vincenzo Librandi, Aug 24 2012 *)

PROG

(MAGMA) [p: p in PrimesUpTo(17000) | p mod 41 eq 25 ]; // Vincenzo Librandi, Aug 24 2012

(PARI) is(n)=isprime(n) && n%41==25 \\ Charles R Greathouse IV, Jul 03 2016

CROSSREFS

Cf. A000040.

Sequence in context: A248402 A201220 A088563 * A123300 A238669 A142018

Adjacent sequences:  A142219 A142220 A142221 * A142223 A142224 A142225

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 July 27 15:29 EDT 2021. Contains 346307 sequences. (Running on oeis4.)