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 A211975 #14 Aug 10 2014 13:25:14 %S A211975 1,3,10,37,143,562,2230,8884,35465,141720,566600,2265843,9062261, %T A211975 36246826,144982872,579922629,2319672806,9278655812,37114552436, %U A211975 148458068139,593831989359,2375327391072,9501308431593,38005231461009,152020921313377 %N A211975 A122536(2n)/2. %H A211975 B. Chaffin, J. P. Linderman, N. J. A. Sloane and Allan Wilks, <a href="http://arxiv.org/abs/1212.6102">On Curling Numbers of Integer Sequences</a>, arXiv:1212.6102, Dec 25 2012. %H A211975 B. Chaffin, J. P. Linderman, N. J. A. Sloane and Allan Wilks, <a href="https://cs.uwaterloo.ca/journals/JIS/VOL16/Sloane/sloane3.html">On Curling Numbers of Integer Sequences</a>, Journal of Integer Sequences, Vol. 16 (2013), Article 13.4.3. %H A211975 <a href="/index/Cu#curling_numbers">Index entries for sequences related to curling numbers</a> %Y A211975 Bisection of A093371. %Y A211975 Cf. A093370, A121880, A216955. %K A211975 nonn %O A211975 1,2 %A A211975 _Omar E. Pol_, Nov 30 2012