%I #6 Mar 30 2012 18:39:16

%S 1,1,2,2,2,2,4,2,2,4,2,2,2,4,2,2,8,2,4,2,4,4,2,4,2,4,2,2,2,2,8,4,2,2,

%T 4,4,2,4,2,8,4,4,2,2,2,8,2,8,4,4,2,2,4,2,2,4,4,2,2,4,4,2,4,2,8,4,2,4,

%U 2,4,2,4,2,8,4,2,4,2

%N Number of noncongruent solutions to x^(2^m) == 1 (mod n) when n is such that the number of solutions is the same for any m>=1.

%Y Cf. A060594.

%K nonn

%O 1,3

%A _Benoit Cloitre_, Apr 08 2003