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 A060863 #5 Mar 30 2012 18:35:41 %S A060863 2,3,4,5,6,7,9,11,12,13,15,17,18,19,21,22,23,26,29,30,31,34,37,38,39, %T A060863 41,42,43,45,46,47,49,50,51,52,53,55,56,59,60,61,64,67,68,69,70,71,72, %U A060863 73,76,77,78,79,81,82,83,86,87,89,91,92,93,95,96,97,99,100,101,102,103 %N A060863 Positive numbers n which are the average of a run of consecutive primes. %C A060863 All primes and averages of twin primes are in the sequence. %F A060863 A122821(a(n)) > 0. %e A060863 2, 9, 46 are in the sequence because 2 = (2)/1; 9 = (7+11)/2; 46 = (41+43+47+53)/4. %Y A060863 Complement of A060864. %K A060863 nonn %O A060863 1,1 %A A060863 _David W. Wilson_, May 04 2001