This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A107303 #37 Mar 31 2024 15:09:15 %S A107303 4,6,8,12,14,16,22,24,26,28,34,36,38,44,48,52,54,56,62,66,68,72,76,78, %T A107303 82,92,94,96,104,106,112,114,118,124,126,128,134,138,142,146,148,154, %U A107303 156,164,168,176,182,184,192,194,202,204,206,208,212,216,222,226,232 %N A107303 Numbers k such that (3*k - 5) is prime. %C A107303 3 and 5 are twin primes. %H A107303 Daniel Starodubtsev, <a href="/A107303/b107303.txt">Table of n, a(n) for n = 1..10000</a> %e A107303 If k=4, then 3*k - 5 = 7 (prime). %e A107303 If k=28, then 3*k - 5 = 79 (prime). %t A107303 Select[Range[2,250],PrimeQ[3#-5]&] (* _Harvey P. Dale_, Mar 31 2024 *) %o A107303 (Magma) [n: n in [2..300] | IsPrime(3*n-5)]; // _Vincenzo Librandi_, Nov 13 2010 %o A107303 (PARI) is(n)=isprime((3*n-5)) \\ _Charles R Greathouse IV_, Jun 12 2017 %Y A107303 Cf. A088879. %Y A107303 Cf. A153183, A024892, A034936. %Y A107303 Equals A153183(n) + 1; also A024892(n) + 2; also A034936(n) + 3; %K A107303 nonn,easy %O A107303 1,1 %A A107303 _Parthasarathy Nambi_, May 20 2005