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A127807 Least positive primitive root of (n-th prime)^2. 4

%I

%S 3,2,2,3,2,2,3,2,5,2,3,2,6,3,5,2,2,2,2,7,5,3,2,3,5,2,5,2,6,3,3,2,3,2,

%T 2,6,5,2,5,2,2,2,19,5,2,3,2,3,2,6,3,7,7,6,3,5,2,6,5,3,3,2,5,17,10,2,3,

%U 10,2,2,3,7,6,2,2,5,2,5,3,21,2,2,7,5,15,2,3,13,2,3,2,13,3,2,7,5,2,3,2,2

%N Least positive primitive root of (n-th prime)^2.

%C A055578 lists the indices n such that a(n) differs from A001918(n).

%t << NumberTheory`NumberTheoryFunctions` Table[PrimitiveRoot[(Prime[n])^2], {n, 1, 100}]

%t PrimitiveRoot[Prime[Range[100]]^2] (* _Harvey P. Dale_, Aug 19 2017 *)

%Y Cf. A001918, A127808, A127809, A127810.

%K nonn,easy

%O 1,1

%A _Artur Jasinski_, Jan 29 2007

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Last modified October 17 12:33 EDT 2019. Contains 328112 sequences. (Running on oeis4.)