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 A253077 #11 May 08 2024 02:29:09 %S A253077 0,1,6,39,273,2013,15330,119572,949560,7646457,62263994,511647711, %T A253077 4236443046,35303691969,295820592090,2490618533403,21057047599918, %U A253077 178684089639276,1521229411793910,12988958823773660,111198159686496300,954235370332956621,8206424184863387028 %N A253077 Bisection of A136704 (divided by 2). %H A253077 Amiram Eldar, <a href="/A253077/b253077.txt">Table of n, a(n) for n = 1..1000</a> %Y A253077 Cf. A136704, A253076. %K A253077 nonn %O A253077 1,3 %A A253077 _N. J. A. Sloane_, Feb 01 2015 %E A253077 Offset corrected and more terms added by _Amiram Eldar_, May 08 2024