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 A086380 #9 Sep 08 2022 08:45:11 %S A086380 3,15,33,57,117,147,255,477,837,903,1035,2193,2487,3345,5325,5727, %T A086380 7377,7833,8205,9723,11055,11763,11955,13545,15015,15267,16047,17667, %U A086380 19923,20385,21663,26247,26457,26643,29187,29493,30207,32397,32967,35475 %N A086380 Numbers n such that p = n^2 + 2, p+2 and p+6 are consecutive primes. %o A086380 (Magma) [n: n in [0..100000]|IsPrime(n^2+2) and IsPrime(n^2+4) and IsPrime(n^2+8)]; // _Vincenzo Librandi_, Dec 17 2010 %K A086380 easy,nonn %O A086380 1,1 %A A086380 _Zak Seidov_, Sep 08 2003