4 Jan
2013
4 Jan
'13
6:47 a.m.
It only took a couple of minutes in Mma, to identify which of the 10! permutations fix the code: fixedQ[p_] := Sort[Map[#[[p]] &, code]] == code Select[Permutations[Range[10]], fixedQ] -Veit On Jan 4, 2013, at 8:33 AM, Michael Kleber <michael.kleber@gmail.com> wrote:
Veit, how did you even notice that symmetry in the first place? Short of applying all 10! permutations to the bit strings to see what fixes the overall code, it seems hard to stumble across...
--Michael