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 A127188 #4 Mar 30 2012 16:50:40 %S A127188 1,1,0,0,0,1,-3,18,-121,1044,-11112,142419,-2164506,38488964, %T A127188 -791648701,18649007091,-498838420314,15036512507141,-507331242588268, %U A127188 19044960439970134,-791159753019542794 %N A127188 Nearest integer to (2*n+1)*Bernoulli(2*n). %H A127188 N. J. A. Sloane, <a href="/A127188/b127188.txt">Table of n, a(n) for n = 0..200</a> %Y A127188 Cf. A050925/A050932, A127187. %K A127188 sign %O A127188 0,7 %A A127188 _N. J. A. Sloane_, Mar 26 2007