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%I #24 Mar 28 2019 14:54:05
%S 0,1,1,4,1,6,4,11,1,10,6,17,4,17,11,26,1,18,10,29,6,27,17,40,4,29,17,
%T 44,11,40,26,57,1,34,18,53,10,47,29,68,6,47,27,70,17,62,40,87,4,53,29,
%U 80,17,70,44,99,11,68,40,99,26,87,57,120,1,66,34,101,18,87,53,124,10,83,47,122,29,106,68
%N Recurrence: a(2n) = a(n), a(2n+1) = a(n) + 2n + 1, with a(0) = 0, a(1) = 1.
%C Unique values are 0,1,4,6,10,11,17,18,26,27,29,34,40,47,53,57,62,68...
%H Antti Karttunen, <a href="/A228451/b228451.txt">Table of n, a(n) for n = 0..16384</a>
%H Antti Karttunen, <a href="/A228451/a228451.txt">Data supplement: n, a(n) computed for n = 0..65536</a>
%F For m>0, a(2^m+1) = 2^m+2, a(2^m+2) = 2^(m-1)+2, a(2^m+3) = 3*2^m+5, a(2^m+2^(m-1)) = 4, a(2^m-1) = 2^(m+1) - m - 2.
%o (PARI) a(n)=if(n<2,n==1,if(n%2,n+a(n-1),a(n/2)))
%Y Cf. A030067, A000265, A000120.
%K nonn,look
%O 0,4
%A _Ralf Stephan_, Oct 27 2013
%E Name corrected by _Gionata Neri_, Mar 27 2019
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