A113115 -id:A113115 - cp's OEIS frontend

A113487 Numbers k such that 17*k + 2 is prime.

0, 1, 3, 13, 15, 21, 27, 33, 37, 43, 55, 57, 61, 75, 85, 87, 91, 93, 103, 105, 111, 127, 135, 141, 145, 157, 171, 177, 181, 187, 213, 217, 223, 231, 241, 243, 247, 255, 265, 273, 283, 297, 301, 303, 313, 325, 345, 355, 363, 373, 385, 387, 415, 421, 423, 441, 451

Offset: 1

Parthasarathy Nambi, Jan 09 2006

nonn

			If n=187 then 17*n + 2 = 3181 (prime).

G. C. Greubel, Table of n, a(n) for n = 1..1000

Cf. A113115.

Select[Range[0, 400], PrimeQ[17# + 2] &] (* Stefan Steinerberger, Mar 18 2006 *)

More terms from Stefan Steinerberger, Mar 18 2006

More terms from Franklin T. Adams-Watters, Aug 29 2006

A113169 Primes p such that 13*p + 2 is also prime.

Original entry on oeis.org

3, 5, 17, 29, 47, 53, 59, 113, 137, 173, 227, 239, 257, 269, 347, 353, 389, 419, 449, 467, 479, 509, 557, 563, 599, 677, 719, 743, 827, 839, 953, 977, 983, 1013, 1019, 1103, 1109, 1163, 1193, 1217, 1223, 1259, 1277, 1289, 1307, 1373, 1427, 1487

Offset: 1

Parthasarathy Nambi, Jan 06 2006

nonn

Except for 3, all terms == 5 (mod 6). - Robert Israel, Sep 06 2018

			If p=173 then 13*p + 2 = 2251 (prime).

Robert Israel, Table of n, a(n) for n = 1..10000
Chris Caldwell The First 1000 Primes.

Cf. A113151, A113115.

[p: p in PrimesUpTo(3000)|  IsPrime(13*p+2)] // Vincenzo Librandi, Jan 29 2011

select(t -> isprime(t) and isprime(13*t+2), [3,seq(i,i=5..10000,6)]); # Robert Israel, Sep 06 2018

forprime(p=3, 1e4, if(isprime(13*p+2), print1(p, ", "))); \\ Altug Alkan, Sep 07 2018

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A113487 Numbers k such that 17*k + 2 is prime.

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A113169 Primes p such that 13*p + 2 is also prime.

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