|
| |
|
|
A142355
|
|
Primes congruent to 2 mod 47.
|
|
1
|
|
|
|
2, 331, 613, 1459, 1553, 1741, 2399, 2963, 3433, 3527, 4091, 4373, 4561, 4937, 5407, 5501, 5689, 5783, 6911, 7193, 7757, 8039, 10859, 11047, 11329, 11423, 11987, 12269, 12457, 12739, 13397, 13679, 14149, 14243, 14431, 14713, 15277, 15559, 16217, 17627
(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) ~ 46n log n. - Charles R Greathouse IV, Jul 03 2016
|
|
|
MATHEMATICA
|
Select[Prime[Range[2500]], MemberQ[{2}, Mod[#, 47]]&] (* Vincenzo Librandi, Aug 26 2012 *)
Select[Range[2, 20000, 47], PrimeQ] (* Harvey P. Dale, Mar 15 2022 *)
|
|
|
PROG
|
(Magma) [p: p in PrimesUpTo(18000) | p mod 47 eq 2]; // Vincenzo Librandi, Aug 26 2012
(PARI) is(n)=isprime(n) && n%47==2 \\ Charles R Greathouse IV, Jul 03 2016
|
|
|
CROSSREFS
|
Cf. A000040.
Sequence in context: A012729 A173750 A088250 * A203608 A264942 A159488
Adjacent sequences: A142352 A142353 A142354 * A142356 A142357 A142358
|
|
|
KEYWORD
|
nonn,easy
|
|
|
AUTHOR
|
N. J. A. Sloane, Jul 11 2008
|
|
|
STATUS
|
approved
|
| |
|
|
