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 A238666 #4 Mar 02 2014 15:17:46 %S A238666 29,41,113,163,173,199,211,251,449,479,491,503,659,661,809,823,941, %T A238666 1031,1171,1181,1259,1361,1669,1753,1759,1861,1879,1901,1999,2039, %U A238666 2081,2141,2161,2213,2273,2371,2473,2539,2579,2591,2633,2819,2903,2939,2969,3011 %N A238666 Primes p such that (p+4)^2+4 is prime but (p+j)^2+j is not prime for all 0<j<4. %H A238666 Alois P. Heinz, <a href="/A238666/b238666.txt">Table of n, a(n) for n = 1..10000</a> %Y A238666 Column k=4 of A238086. %K A238666 nonn %O A238666 1,1 %A A238666 _Alois P. Heinz_, Mar 02 2014