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 A157206 #6 Jul 29 2014 12:36:48 %S A157206 1,-13,-27,5447,21897,-8550373,-51521427,28491956207,228898201617, %T A157206 -162934942038973,-1636222143855627,1423695084746914967, %U A157206 17156395293052656537,-17642381532358409441173,-248035037340684934103427,294301682652158427497809727 %N A157206 Numerator of Euler(n, 1/28). %H A157206 T. D. Noe, <a href="/A157206/b157206.txt">Table of n, a(n) for n = 0..100</a> %t A157206 Numerator[EulerE[Range[0,20],1/28]] (* _Harvey P. Dale_, Jul 29 2014 *) %Y A157206 For denominators see A009972. %K A157206 sign,frac %O A157206 0,2 %A A157206 _N. J. A. Sloane_, Nov 07 2009