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Log base 2 (n) mod 149.
1

%I #15 Mar 10 2020 14:58:52

%S 0,1,87,2,104,88,142,3,26,105,109,89,53,143,43,4,124,27,84,106,81,110,

%T 95,90,60,54,113,144,120,44,132,5,48,125,98,28,72,85,140,107,41,82,93,

%U 111,130,96,138,91,136,61,63,55,18,114,65,145,23,121,57,45,38

%N Log base 2 (n) mod 149.

%D I. M. Vinogradov, Elements of Number Theory, p. 220ff.

%H Georg Fischer, <a href="/A036190/b036190.txt">Table of n, a(n) for n = 1..148</a>

%p with (numtheory): seq(mlog(n, 2, 149), n=1..148); # _Georg Fischer_, Mar 09 2020

%t a[1]=0; a[n_]:=MultiplicativeOrder[2, 149, {n}]; Array[a, 148] (* _Vincenzo Librandi_, Mar 10 2020 *)

%K nonn,fini,full

%O 1,3

%A _N. J. A. Sloane_.