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A287878 Trajectory of 234 under the map x -> A230625(x). 6

%I #26 Nov 22 2019 16:13:00

%S 234,749,1003,1147,2021,2799,7479,7957,9453,30601,36783,122563,246885,

%T 978327,3926821,5159983,9838787,16121775,62223239,113838307,775077957,

%U 1043973167,2519959611,8311144305,31830468841

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

%C 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.

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

%H Sean A. Irvine, <a href="/A287878/b287878.txt">Table of n, a(n) for n = 1..104</a>

%Y Cf. A230625, A230626, A230627, A287875.

%K nonn,base,fini,full

%O 1,1

%A _N. J. A. Sloane_, Jun 17 2017

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Last modified April 16 14:51 EDT 2024. Contains 371749 sequences. (Running on oeis4.)