Trajectory of 16 under map that sends x to 3x - sigma(x).

Terms

a(0) =16a(1) =17a(2) =33a(3) =51a(4) =81a(5) =122a(6) =180a(7) =-6a(8) =-30a(9) =-162a(10) =-849a(11) =-3683a(12) =-14889a(13) =-67387a(14) =-270481a(15) =-1083495a(16) =-5351733a(17) =-23785493a(18) =-95779647a(19) =-425687333a(20) =-1702749333a(21) =-7385743647a(22) =-33685755741a(23) =-156526119063a(24) =-703401325293