A142858 Primes congruent to 60 mod 61.

487, 853, 1097, 1951, 2683, 2927, 3049, 3659, 4391, 4513, 6221, 6343, 6709, 8539, 8783, 10247, 10369, 10613, 10979, 11467, 11833, 12809, 13297, 13907, 14029, 14639, 15493, 15737, 15859, 16103, 18787, 19031, 19763, 20129, 20983, 21227, 22447, 22691, 23057

Offset

1,1

Links

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

Formula

a(n) ~ 60n log n. - Charles R Greathouse IV, Jul 03 2016

Mathematica

Select[Range[60, 30000, 61], PrimeQ] (* Vladimir Joseph Stephan Orlovsky, Jul 14 2011 *)
Select[Prime[Range[2800]], MemberQ[{60}, Mod[#, 61]] &] (* Vincenzo Librandi, Sep 06 2012 *)

Prog

(Magma) [p: p in PrimesUpTo(24000) | p mod 61 eq 60 ] ; // Vincenzo Librandi, Sep 06 2012
(PARI) is(n)=isprime(n) && n%61==60 \\ Charles R Greathouse IV, Jul 03 2016

Crossrefs

Cf. A000040, A142322.

Sequence in context: A124667 A142540 A048424 * A255207 A236424 A235839

Adjacent sequences: A142855 A142856 A142857 * A142859 A142860 A142861

Keyword

nonn,easy

Author

N. J. A. Sloane, Jul 11 2008

Status

approved