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A142646 Primes congruent to 13 mod 56. 1
13, 181, 293, 349, 461, 797, 853, 1021, 1301, 1637, 1693, 1861, 1973, 2029, 2141, 2309, 2477, 3037, 3373, 3541, 3709, 3821, 3877, 3989, 4157, 4493, 4549, 5333, 5501, 5557, 5669, 6173, 6229, 6397, 6733, 7013, 7069, 7237, 7349, 7517, 7573, 7741, 7853, 8581 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

MATHEMATICA

Select[Prime[Range[1500]], Mod[#, 56]==13&]  (* Harvey P. Dale, Mar 06 2011 *)

Select[Prime[Range[1300]], MemberQ[{13}, Mod[#, 56]] &] (* Vincenzo Librandi, Sep 01 2012 *)

PROG

(MAGMA) [p: p in PrimesUpTo(10000) | p mod 56 eq 13 ]; // Vincenzo Librandi, Sep 01 2012

CROSSREFS

Cf. A000040.

Sequence in context: A196956 A132386 A127390 * A201607 A083576 A189432

Adjacent sequences:  A142643 A142644 A142645 * A142647 A142648 A142649

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, Jul 11 2008

STATUS

approved

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Last modified December 2 10:40 EST 2021. Contains 349437 sequences. (Running on oeis4.)