%I #6 Mar 30 2012 18:39:17
%S 5,9,21,37,46,49,53,69,85,101,113,117,121,133,137,149,165,174,177,181,
%T 197,213,217,229,241,245,261,265,277,293,302,305,309,313,325,341,357,
%U 369,373,389,393,405,421,430,433,437,441,453,469,485,497,501,517,521
%N Numbers n such that the number of steps needed to reach an integer starting with n-1/4 or n+1/4 and iterating the map x-->x*ceiling(x) is the same.
%Y Cf. A068119.
%K nonn
%O 1,1
%A _Benoit Cloitre_, Apr 13 2003