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 A065548 #3 Mar 30 2012 18:50:19
%S A065548 1,1,1,2,1,3,1,5,4,6,1,9,9,10,1,15,25,19,16,25,36,26,1,35,81,44,81,54,
%T A065548 100,55,1,70,225,95,625,114,361,130,256,155,625,191,1296,217,676,218,
%U A065548 1,253,1225,334,6561,378,1936,459,6561,513,2916,613,10000,668,3025,669,1
%N A065548 a(1) = 1 and, for n > 0, a(2*n) = sum{a(i) | 0 < i <= n}, a(2*n+1) = a(n)^2.
%Y A065548 a(A052955(k)) = 1 for all k.
%K A065548 nonn
%O A065548 1,4
%A A065548 _Reinhard Zumkeller_, Nov 28 2001