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A243110 Records in A054471. 0

%I

%S 3,11,37,101,239,271,1933,3191,3541,4093,4649,9091,21649,52579,123551,

%T 210631,238681,329401,333667,513239,909091,2071723,2906161,5882353,

%U 10838689,35121409,52986961,70541929,83251631,99990001,121499449,247629013,265371653,1052788969,1056689261,1058313049,5363222357

%N Records in A054471.

%C The corresponding cyclic numbers are: 2, 5, 12, 25, 34, 54, 92, 110, 177, 186, 664, 909, 1968, 2921, 3530, 4130, 5304, 5400, 37074, 46658, 64935, 121866, 193744, 367647, 516128, 747264, 1038960, 1306332, 1513666, 4166250, 4339266, 6692676, 20413204, 23927022, 24015665, 40704348, 315483668

%t p = 2; mx = 0; lst = {}; While[p < 12500000000, m = (p - 1)/MultiplicativeOrder[10, p]; If[m > mx, mx = m; AppendTo[lst, p]; Print[{m, p}]]; p = NextPrime@ p]; lst

%Y Cf. A054471.

%K nonn

%O 1,1

%A _Robert G. Wilson v_, Aug 20 2014

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Last modified July 8 19:20 EDT 2020. Contains 335524 sequences. (Running on oeis4.)