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 A164622 #3 Mar 31 2012 12:38:26
%S A164622 151,463,571,631,643,991,1063,1171,1831,2083,2311,4951,5023,6211,6703,
%T A164622 6763,7723,7951,9043,11383,12163,12391,13183,14851,15031,17431,19231,
%U A164622 19543,20143,22051,23143,25951,26371,27283,28351,29131,30643,32803
%N A164622 Primes p such that p*floor(p/2) - 4 and p*floor(p/2) + 4 are prime numbers.
%C A164622 151*75-4=11321 (prime), 151*75+4=11329 (prime), ..
%t A164622 lst={};Do[p=Prime[n];If[PrimeQ[p*Floor[p/2]-4]&&PrimeQ[p*Floor[p/2]+4],AppendTo[lst,p]],{n,8!}];lst
%Y A164622 Subsequence of A068229. Cf. A008846, A020882, A068229, A086519, A158708, A164620, A164621
%K A164622 nonn
%O A164622 1,1
%A A164622 _Vladimir Joseph Stephan Orlovsky_, Aug 17 2009
%E A164622 Edited by _Charles R Greathouse IV_, Nov 02 2009