%I #6 Mar 30 2012 18:35:25
%S 2,4,8,16,32,64
%N Numbers on backgammon doubling cube.
%H Tanya Khovanova, <a href="http://www.tanyakhovanova.com/RecursiveSequences/NonRecursions.html">Non Recursions</a>
%K fini,full,nonn
%O 1,1
%A _David W. Wilson_