%I #21 Nov 14 2014 09:34:45
%S 0,1,1,5,2,8,9,18,5,15,16,29,19,34,36,54,12,30,31,52,34,57,59,85,41,
%T 68,70,100,75,107,110,145,27,61,62,99,65,104,106,148,72,115,117,163,
%U 122,170,173,224,87,138,140,194,145,201,204,263,156,216,219,282,226
%N Replace 2^k in the binary representation of n with n-k (i.e. if n = 2^a + 2^b + 2^c + ... then a(n) = (n-a) + (n-b) + (n-c) + ...).
%H Alois P. Heinz, <a href="/A198192/b198192.txt">Table of n, a(n) for n = 0..10000</a>
%F a(n) = n*A000120(n) - A073642(n). - _Franklin T. Adams-Watters_, Oct 22 2011
%F a(n) = b(n,n) with b(0,k) = 0, b(n,k) = k*(n mod 2) + b(floor(n/2),k-1) for n>0. - _Alois P. Heinz_, Oct 25 2011
%e a(5) = (5-2) + (5-0) = 8 because 5 = 2^2 + 2^0.
%e a(7) = (7-2) + (7-1) + (7-0) = 18 because 7 = 2^2 + 2^1 + 2^0.
%p b:= (n, k)-> `if`(n=0, 0, k*(n mod 2)+b(floor(n/2), k-1)):
%p a:= n-> b(n, n):
%p seq(a(n), n=0..100); # _Alois P. Heinz_, Oct 25 2011
%o (MATLAB) % n is number of terms to be computed:
%o function [B] = predAddition(n)
%o for i = 0:n
%o k = i;
%o c = 0;
%o s = 0;
%o while(k ~= 0)
%o if ((i - c) >= 0)
%o s = s + mod(k,2)*(i-c);
%o end
%o c = c + 1;
%o k = (k - mod(k,2))/2;
%o end
%o B(i+1) = s;
%o end
%o end
%Y Cf. A000120, A073642.
%K nonn,look,base
%O 0,4
%A _Brian Reed_, Oct 21 2011