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 A211973 #15 Sep 05 2020 03:48:21 %S A211973 1,5,22,91,369,1486,5962,23884,95607,382568,1530552,6122765,24492171, %T A211973 97970902,391888040,1567561019,6270261786,25081082556,100324401036, %U A211973 401297745749,1605191266193,6420765631136,25683063657239,102732256894319 %N A211973 a(n) = A121880(2*n)/2. %H A211973 Hakan Icoz, <a href="/A211973/b211973.txt">Table of n, a(n) for n = 1..100</a> %H A211973 <a href="/index/Cu#curling_numbers">Index entries for sequences related to curling numbers</a> %Y A211973 Bisection of A093370. %Y A211973 Cf. A093371, A122536, A216955. %K A211973 nonn %O A211973 1,2 %A A211973 _Omar E. Pol_, Nov 30 2012 %E A211973 More terms from _Hakan Icoz_, Sep 04 2020