A287878 Trajectory of 234 under the map x -> A230625(x).

234, 749, 1003, 1147, 2021, 2799, 7479, 7957, 9453, 30601, 36783, 122563, 246885, 978327, 3926821, 5159983, 9838787, 16121775, 62223239, 113838307, 775077957, 1043973167, 2519959611, 8311144305, 31830468841

Offset

1,1

Comments

Thanks to the work of Chai Wah Wu, it is known that all numbers less than 234 have trajectories that end either at a fixed point or in a cycle of length 2. David J. Seal and Sean A. Irvine have also studied these trajectories. See A230625, A230626, A230627 for the latest information.

For numbers less than 12388, all trajectories either end at a fixed point or in a cycle of length 2.

Links

Sean A. Irvine, Table of n, a(n) for n = 1..104

Crossrefs

Cf. A230625, A230626, A230627, A287875.

Sequence in context: A184450 A338391 A304615 * A252338 A252777 A252771

Adjacent sequences: A287875 A287876 A287877 * A287879 A287880 A287881

Keyword

nonn,base,fini,full

Author

N. J. A. Sloane, Jun 17 2017

Status

approved