A084538 Least primitive root mod 2*prime(n)^2.

5, 3, 3, 7, 7, 3, 3, 5, 3, 3, 5, 7, 3, 5, 3, 11, 7, 7, 7, 5, 3, 5, 3, 5, 3, 5, 5, 11, 3, 3, 17, 3, 3, 3, 7, 5, 3, 5, 3, 7, 21, 19, 5, 3, 3, 3, 3, 5, 7, 3, 7, 7, 11, 3, 5, 3, 15, 5, 3, 3, 3, 5, 17, 15, 3, 3, 15, 5, 7, 3, 7, 11, 5, 3, 5, 3, 5, 3, 21, 11, 23, 7, 5, 15, 5, 3, 13, 3, 3, 5, 13, 3, 7, 7, 5, 3, 3

Offset

2,1

Links

Table of n, a(n) for n=2..98.

P. D. T. A. Elliott and L. Murata, The least primitive root mod 2*p^2, Mathematika, 45 (1998), 371-379.

Maple

with(numtheory): A084538 := n-> primroot(2*ithprime(n)^2);

Crossrefs

Sequence in context: A337571 A244683 A263157 * A263492 A335765 A276759

Adjacent sequences: A084535 A084536 A084537 * A084539 A084540 A084541

Keyword

nonn

Author

N. J. A. Sloane, Jun 30 2003

Status

approved