%I
%S 3,5,336,18,8003163168,86632,7191948600,17,72960
%N The first integer in the sequence defined by b(0)=(2n+1)/n and b(k+1)=b(k)*floor(b(k)) for k>=0.
%C a(10) ~= 2.767*10^155 is too large to show here.
%C It is conjectured that an integer is always reached if the initial value is >= 2.
%H J. C. Lagarias and N. J. A. Sloane, Approximate squaring (<a href="http://neilsloane.com/doc/apsq.pdf">pdf</a>, <a href="http://neilsloane.com/doc/apsq.ps">ps</a>), Experimental Math., 13 (2004), 113128.
%Y Cf. A087669 (steps to reach an integer), A087666.
%K nonn
%O 1,1
%A _N. J. A. Sloane_, Sep 27 2003
