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 A238664 #6 Jul 07 2019 19:13:28 %S A238664 7,31,37,43,79,97,103,241,271,307,367,373,421,499,547,571,601,607,709, %T A238664 751,883,907,967,1033,1129,1213,1231,1237,1327,1423,1597,1609,1621, %U A238664 1747,1801,1867,1933,1951,1993,2017,2131,2137,2203,2221,2281,2287,2647,2659 %N A238664 Primes p such that (p+2)^2+2 is prime but (p+1)^2+1 is not prime. %H A238664 Alois P. Heinz, <a href="/A238664/b238664.txt">Table of n, a(n) for n = 1..10000</a> %t A238664 Select[Prime[Range[400]],PrimeQ[(#+2)^2+2]&&CompositeQ[(#+1)^2+1]&] (* _Harvey P. Dale_, Jul 07 2019 *) %Y A238664 Column k=2 of A238086. %K A238664 nonn %O A238664 1,1 %A A238664 _Alois P. Heinz_, Mar 02 2014