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%I #10 Oct 22 2023 16:35:10
%S 1,6,9,5,3,2,3,7,10,30,33,18,39,16,12,6,51,54,11,55,63,18,23,14,75,78,
%T 27,78,10,30,80,48,99,40,105,3,111,114,23,10,36,110,4,26,135,138,141,
%U 136,58,6,51,26,35,60,165,28,49,58,35,171,183,186,63,10,176
%N Least number m such that 6^m == +- 1 (mod 6n + 1).
%K nonn
%O 1,2
%A _N. J. A. Sloane_