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 A155752 #7 Jun 21 2017 11:24:19 %S A155752 1,2,4,6,9,12,16,19,25,27,32,34,40,42,44,48,51,56,59,63,68,80,82,88, %T A155752 97,103,108,112,115,119,139,141,143,147,151,170,172,175,177,181,189, %U A155752 200,205,208,211,214,224,229,233,235,252,255,261,264,267,276,285,287,293,295,301 %N A155752 Where 2's occur in the prime differences A001223. %C A155752 Starts with the same numbers as A053096. %F A155752 A001223(1+a(n)) = 2. %F A155752 a(n) = A029707(n)-1. - _R. J. Mathar_, Feb 23 2009 %t A155752 Flatten[Position[Differences[Prime[Range[400]]],2]]-1 (* _Harvey P. Dale_, Jun 21 2017 *) %K A155752 nonn %O A155752 1,2 %A A155752 _Paul Curtz_, Jan 26 2009 %E A155752 Edited and extended by _R. J. Mathar_, Feb 23 2009