01/15/2017, 06:19 PM
(This post was last modified: 01/15/2017, 10:20 PM by Vladimir Reshetnikov.)
I found that this conjecture was already proposed on this forum several years ago: http://math.eretrandre.org/tetrationforu...41#pid5941 and http://math.eretrandre.org/tetrationforu...237#pid237

