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 A036269 #11 Oct 17 2015 11:11:35 %S A036269 115,-122,98,-26,-82,166,-166,86,0,-28,28,-70,140,-152,68,56,-134,124, %T A036269 -44,-40,52,14,-76,38,128,-322,398,-364,352,-386,364,-238,74,34,-34, %U A036269 -74,236,-352,356,-302,268,-204,58,58,-56,40,-118,240,-290,222,-84,-54,146 %N A036269 8th differences of primes. %H A036269 T. D. Noe, <a href="/A036269/b036269.txt">Table of n, a(n) for n = 1..10000</a> %t A036269 Differences[Prime[Range[70]],8] (* _Harvey P. Dale_, Nov 06 2011 *) %K A036269 sign %O A036269 1,1 %A A036269 _N. J. A. Sloane_