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 A050311 #5 Dec 19 2015 13:04:09 %S A050311 1,-8,1,28,-8,1,-20,20,-8,1,-98,8,20,-8,1,154,-90,0,20,-8,1,118,36, %T A050311 -62,0,20,-8,1,-212,154,44,-70,0,20,-8,1,-131,-2,28,72,-70,0,20,-8,1, %U A050311 15,-253,98,36,64,-70,0,20,-8,1,223,-98,-119,-28,64,64,-70,0,20,-8,1 %N A050311 Matrix 8th power of inverse partition triangle A038498. %e A050311 1; -8,1; 28,-8,1; -20,20,-8,1; ... %Y A050311 Cf. A050305-A050313. %K A050311 sign,tabl %O A050311 1,2 %A A050311 _Christian G. Bower_, Aug 15 1999