Trajectory of 2 under repeated application of x -> A306958(x).

Terms

a(0) =2a(1) =90a(2) =3628801a(3) =3780821a(4) =4234421a(5) =16030a(6) =151932a(7) =3659870a(8) =6230161a(9) =303231a(10) =2261a(11) =151390a(12) =3659781a(13) =6230170a(14) =756822a(15) =2600820a(16) =1965783a(17) =6230170a(18) =756822a(19) =2600820a(20) =1965783a(21) =6230170a(22) =756822a(23) =2600820a(24) =1965783a(25) =6230170a(26) =756822a(27) =2600820a(28) =1965783