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 A088233 #3 Mar 30 2012 18:50:38 %S A088233 1,1,-1,3,2,-5,1,8,2,-11,15,2,4,-18,-2,26,2,-29,35,4,2,4,-40,46,6,2, %T A088233 -59,65,4,2,6,-76,80,6,8,4,2,4,2,4,-102,-6,122,-125,129,6,2,10,2,6,6, %U A088233 4,-154,160,6,2,10,2,4,2,12,12,4,2,4,6,2,-238,248,-249,255,6,6,2,6,4 %N A088233 First differences of roots of consecutive prime powers; a(1)=1. %C A088233 a(n) = A025473(n+1) - A025473(n). %Y A088233 Cf. A088234, A000961, A057820. %K A088233 sign %O A088233 1,4 %A A088233 _Reinhard Zumkeller_, Sep 25 2003