%I A094328
%S A094328 4,5,7,9,6,4,5,7,9,6,4,5,7,9,6,4,5,7,9,6,4,5,7,9,6,4,5,7,9,6,4,5,7,9,6,
%T A094328 4,5,7,9,6,4,5,7,9,6,4,5,7,9,6,4,5,7,9,6,4,5,7,9,6,4,5,7,9,6,4,5,7,9,6,
%U A094328 4,5,7,9,6,4,5,7,9,6,4,5,7,9,6,4,5,7,9,6,4,5,7,9,6,4,5,7,9,6,4,5,7,9,6
%N A094328 Iterate the map in A006368 starting at 4.
%H A094328 J. C. Lagarias, <a href="http://www.cecm.sfu.ca/organics/papers/lagarias/
               paper/html/paper.html">The 3x+1 problem and its generalizations</
               a>, Amer. Math. Monthly, 92 (1985), 3-23.
%F A094328 The map is: n -> if n mod 3 = 0 then 2*n/3 elif n mod 3 = 1 then (4*n-1)/
               3 else (4*n+1)/3.
%F A094328 Periodic.
%F A094328 a(n)=(1/50)*{51*(n mod 5)+61*[(n+1) mod 5]+11*[(n+2) mod 5]+11*[(n+3) 
               mod 5]+21*[(n+4) mod 5]}, with n>=0 - Paolo P. Lava (ppl(AT)spl.at), 
               Jun 26 2007
%Y A094328 Cf. A006368, A028394-A028397, A094329.
%Y A094328 Sequence in context: A140076 A135186 A011336 this_sequence A081095 A080596 
               A032492
%Y A094328 Adjacent sequences: A094325 A094326 A094327 this_sequence A094329 A094330 
               A094331
%K A094328 nonn
%O A094328 1,1
%A A094328 N. J. A. Sloane (njas(AT)research.att.com), Jun 04 2004