A105610 - OEIS

A105610

Numbers k such that both p1=2k+3 and p2=4k+5 are primes.

0, 2, 8, 14, 17, 38, 47, 68, 77, 98, 104, 113, 134, 152, 164, 167, 182, 188, 218, 248, 272, 287, 299, 302, 308, 329, 344, 362, 404, 413, 437, 467, 482, 497, 503, 533, 584, 617, 638, 647, 698, 713, 728, 764, 803, 812, 827, 878, 932, 1004, 1013, 1043, 1064, 1067

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OFFSET

1,2

COMMENTS

p1 in A005382, p2 in A005383.

LINKS

Karl-Heinz Hofmann, Table of n, a(n) for n = 1..10000

MATHEMATICA

Select[Range[0, 1067], PrimeQ[2#+3]&&PrimeQ[4#+5]&] (* James C. McMahon, Jan 26 2024 *)

PROG

(Python)

from sympy import isprime