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 A205373 #6 Mar 30 2012 18:58:10 %S A205373 4,4,6,4,4,6,4,4,6,6,4,6,4,4,6,18,4,12,15,6,9,4,4,6,9,4,12,6,21,4,45, %T A205373 18,6,26,4,6,39,4,6,6,4,18,21,6,15,4,9,12,15,6,9,4,76,6,9,4,12,6,34,4, %U A205373 15,72,6,12,4,6,9,4,12,6,15,4,26,12,6,26,4,15,26,6 %N A205373 s(A204154), where s(j)=(prime(j+1) + prime(j+2))/2. %C A205373 For a guide to related sequences, see A204892. %t A205373 (See the program at A205153.) %Y A205373 Cf. A205153, A204892. %K A205373 nonn %O A205373 1,1 %A A205373 _Clark Kimberling_, Jan 26 2012