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 A155942 #9 Sep 08 2022 08:45:41 %S A155942 1,6,7,12,15,16,21,22,25,27,28,36,37,40,42,48,55,58,61,63,72,75,76,78, %T A155942 81,85,88,93,97,100,106,111,117,118,126,130,132,133,135,142,151,162, %U A155942 163,166,168,172,175,177,181,190,193,195,196,198,201,207,208,210,216,226 %N A155942 Numbers n such that 16n+1 is a prime. %H A155942 Vincenzo Librandi, <a href="/A155942/b155942.txt">Table of n, a(n) for n = 1..1000</a> %t A155942 Select[Range[400], PrimeQ[16 # + 1] &] (* _Vincenzo Librandi_, Feb 16 2013 *) %o A155942 (Magma) [n: n in [0..400] | IsPrime(16*n + 1)]; // _Vincenzo Librandi_, Feb 16 2013 %Y A155942 Cf. A094407, A155941, A155943. %K A155942 nonn,easy %O A155942 1,2 %A A155942 _Vincenzo Librandi_, Jan 31 2009