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Least number m such that 7^m == +- 1 (mod 7n + 1).
0

%I #10 Oct 22 2023 16:45:32

%S 1,4,5,7,6,3,2,3,8,35,12,16,11,30,13,7,4,63,33,23,18,60,27,78,10,60,

%T 12,49,16,105,27,12,14,119,40,55,12,88,34,10,12,116,75,51,39,48,20,28,

%U 3,36,89,24,30,189,12,65,4,90,66,35,53,28,48,56,6,77,92,78

%N Least number m such that 7^m == +- 1 (mod 7n + 1).

%K nonn

%O 1,2

%A _N. J. A. Sloane_