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 A247562 #12 Sep 22 2014 11:14:05
%S A247562 1,4,36,355,3549,35495,354942,3549413,35494123,354941215,3549412151,
%T A247562 35494121507,354941215066,3549412150655,35494121506548,
%U A247562 354941215065477,3549412150654758,35494121506547571,354941215065475694,3549412150654756948
%N A247562 A101402(10^n).
%C A247562 if c = 0.3549412150654756947265447261312365125932387..., then a(n) =~ floor(c*10^n). This holds to n^7 +- 2.
%H A247562 Charles R Greathouse IV and Robert G. Wilson v, <a href="/A247562/b247562.txt">Table of n, a(n) for n = 0..1000</a>
%t A247562 a[0] = 0; a[1] = 1; a[n_] := a[n] = Block[{p = 2^(Ceiling[Log[2, n]] - 1)}, a[p] + a[n - 1 - p]];
%t A247562 Table[a[10^n],{n,0,20}]
%Y A247562 Cf. A101402.
%K A247562 nonn
%O A247562 0,2
%A A247562 _Charles R Greathouse IV_ and _Robert G. Wilson v_, Sep 20 2014