A133432 Let m = n-th number that is not a perfect power, A007916(n). Then a(n) = smallest prime having least positive primitive root m.

3, 7, 23, 41, 71, 313, 643, 4111, 457, 1031, 439, 311, 53173, 191, 107227, 409, 3361, 2161, 533821, 12391, 133321, 15791, 124153, 5881, 268969, 48889, 64609, 36721, 55441, 166031, 1373989, 156601, 2494381, 95471, 71761, 95525767

Offset

1,1

Comments

a(n) = A023048(A007916(n)).

Links

N. J. A. Sloane, Table of n, a(n) for n=1..94 (from the web page of Tomás Oliveira e Silva)

Tomás Oliveira e Silva, Least primitive root of prime numbers

Crossrefs

Cf. A023048, A007916, A001597, A133433 (records).

Sequence in context: A291776 A135570 A053027 * A133433 A029932 A084739

Adjacent sequences: A133429 A133430 A133431 * A133433 A133434 A133435

Keyword

nonn

Author

N. J. A. Sloane, Nov 29 2007

Extensions

Definition corrected by Christopher J. Smyth, Oct 16 2013

Status

approved