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 A118918 #2 Mar 30 2012 17:22:42 %S A118918 5,7,11,19,29,61,71,79,89,109,151,179,181,191,199,271,281,349,379,389, %T A118918 421,439,479,521,541,569,631,659,691,809,821,829,839,919,971,1019, %U A118918 1051,1061,1069,1091,1289,1439,1511,1621,1699,1709,1789,1811,1871,2069,2141 %N A118918 Primes p such that (p^2+11)/12 is prime. %C A118918 For all primes q>3, we have q=6k+-1 for some k, which makes it easy to show that 12 divides q^2+11. %t A118918 Select[Prime[Range[400]],PrimeQ[(#^2+11)/12]&] %Y A118918 Cf. A109953 (primes p such that (p^2+1)/3 is prime), A118915 (primes p such that (p^2+11)/12 is prime). %K A118918 nonn %O A118918 1,1 %A A118918 _T. D. Noe_, May 05 2006