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 A323481 #14 Feb 08 2019 12:45:20 %S A323481 1,2,2,3,4,6,11,20,35,61,103,170,278,451,728,1165,1849,2916,4577,7165, %T A323481 11205,17531,27467,43119,67823,106854,168523,265878,419356,660919, %U A323481 1040546,1636458,2571310,4037926,6340362,9959607,15658964,24653360,38881723,61445514 %N A323481 Number of 1's in n-th generation of A306211. %H A323481 Benjamin Chaffin, <a href="/A323481/b323481.txt">Table of n, a(n) for n = 1..65</a> %Y A323481 Cf. A306211. %Y A323481 First column of A323479. %K A323481 nonn %O A323481 1,2 %A A323481 _N. J. A. Sloane_, Jan 31 2019 %E A323481 More terms from _Benjamin Chaffin_, Feb 07 2019