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 A157236 #5 Nov 21 2013 12:49:34 %S A157236 1,-3,-187,1737,181577,-2828523,-433608307,9464818017,1929308914577, %T A157236 -54151301196243,-13793410821936427,473188884804949497, %U A157236 144631586163051804377,-5863775132075093720763,-2090985354124427263262947,97816726792847265070764177,39863788048903869672547506977 %N A157236 Numerator of Euler(n, 11/28). %t A157236 Numerator[EulerE[Range[0,30],11/28]] (* _Harvey P. Dale_, Jan 29 2012 *) %Y A157236 For denominators see A009972. %K A157236 sign,frac %O A157236 0,2 %A A157236 _N. J. A. Sloane_, Nov 07 2009