%I #6 Nov 04 2013 11:58:54
%S 1,5,6,10,11,12,16,17,20,21,23,24,26,29,31,32,33,34,35,36,37,38,39,43,
%T 44,45,46,47,52,53,54,55,57,59,61,63,64,65,69,70,72,73,74,75,77,78
%N The sequence d when b=[ 1,1,1,1,0,1,1,1,.. ].
%C Map a binary sequence b=[ b_1,... ] to a binary sequence c=[ c_1,... ] so that C=1/Product((1-x^i)^c_i == 1+Sum b_i*x^i mod 2.
%C This produces 2 new sequences: d={i:c_i=1} and e=[ 1,e_1,... ] where C=1+Sum e_i*x^i.
%K nonn
%O 0,2
%A _N. J. A. Sloane_ and _J. H. Conway_