%I #10 Aug 15 2015 09:57:43
%S 9,18,27,36,45,54,63,69,72,78,81,87,90,96,99,108,114,117,120,126,135,
%T 144,153,156,162,171,180,189,198,207,213,216,225,234,243,252,255,261,
%U 270,279,288,297,306,312,315,324,333,342,351,354,360,369,378,387,396
%N Starting numbers for which the RATS sequence has eventual period 2.
%C A114611(a(n)) = 2. - _Reinhard Zumkeller_, Mar 14 2012
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/RATSSequence.html">RATS Sequence</a>
%Y Cf. A114611, A114612, A114613, A114614, A114615, A114616.
%Y Cf. A066711, A036839.
%K nonn,base
%O 1,1
%A _Eric W. Weisstein_, Dec 16 2005