|
%I #9 Oct 12 2012 15:01:13
%S 2,1,6,3,18,9,30,42,78,114,138,87,330,318,189,462,408,504,303,561,
%T 1002,2040,1794,1746,2418,2790,1389,3894,4722,6738,4077,14610,14616,
%U 15294,16662,18966,10641,27144,26142,39360,31638
%N Periods associated with A217611.
%e The octal expansion of 1/73 is 0.007007..., having a period of 3 and it is the only prime with that period.
%t lst1 = {}; lst2 = {}; lst4 = {}; Do[c = Cyclotomic[n, 8]; q = c/GCD[n, c]; If[PrimePowerQ[q], p = FactorInteger[q][[1, 1]]; AppendTo[lst1, p]; AppendTo[lst2, n]], {n, 561}]; lst3 = Sort[lst1]; Do[AppendTo[lst4, Take[lst2, Flatten@Position[lst1, lst3[[p]]]]], {p, Length@lst3}]; Flatten[lst4]
%Y Cf. A217611.
%K base,nonn
%O 1,1
%A _Arkadiusz Wesolowski_, Oct 09 2012
|
