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 A091407 #13 Aug 05 2018 12:07:54 %S A091407 0,1,1,1,1,1,3,1,1,1,1,1,1,1,1,3,1,1,9,1,1,1,1,1,1,3,1,1,1,1,1,1,1,1, %T A091407 3,1,1,9,19,1,1,4,4,1,1,4,1,1,1,1,1,1,1,3,1,1,1,1,1,1,1,1,3,1,1,9,1,1, %U A091407 1,1,1,1,3,1,1,1,1,1,1,1,1,3,1,1,9,19,1,1,4,4,1,1,4,1,47,1,1,5 %N A091407 Values of len_y(n) for A090822. %H A091407 F. J. van de Bult, D. C. Gijswijt, J. P. Linderman, N. J. A. Sloane and Allan Wilks, <a href="https://cs.uwaterloo.ca/journals/JIS/VOL10/Sloane/sloane55.html">A Slow-Growing Sequence Defined by an Unusual Recurrence</a>, J. Integer Sequences, Vol. 10 (2007), #07.1.2. %H A091407 F. J. van de Bult, D. C. Gijswijt, J. P. Linderman, N. J. A. Sloane and Allan Wilks, A Slow-Growing Sequence Defined by an Unusual Recurrence [<a href="http://neilsloane.com/doc/gijs.pdf">pdf</a>, <a href="http://neilsloane.com/doc/gijs.ps">ps</a>]. %H A091407 <a href="/index/Ge#Gijswijt">Index entries for sequences related to Gijswijt's sequence</a> %K A091407 nonn %O A091407 1,7 %A A091407 _N. J. A. Sloane_, Mar 04 2004