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A084739 Let p = n-th prime, then a(n) = smallest prime having p as its least prime primitive root. 4
3, 7, 23, 41, 109, 457, 311, 191, 2137, 409, 1021, 1031, 1811, 271, 14293, 2791, 55441, 35911, 57991, 221101, 23911, 11971, 110881, 103091, 71761, 513991, 290041, 31771, 448141, 2447761, 674701, 3248701, 2831011, 690541, 190321, 2080597, 4076641 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Smallest prime(m) such that A002233(m) = prime(n). (Corrected by Jonathan Sondow, Feb 02 2013)

LINKS

N. J. A. Sloane, Table of n, a(n) for n=1..97 (from the web page of Tomás Oliveira e Silva)

Tomás Oliveira e Silva, Least primitive root of prime numbers

A. Paszkiewicz and A. Schinzel, On the least prime primitive root modulo a prime, Math. Comp. 71 (2002), no. 239, 1307-1321.

CROSSREFS

Cf. A084735, A001918, A079061. For records see A133434.

Sequence in context: A133432 A133433 A029932 * A133434 A122870 A216816

Adjacent sequences:  A084736 A084737 A084738 * A084740 A084741 A084742

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, Jul 03 2003

EXTENSIONS

More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com) and Don Reble, Jul 03 2003

STATUS

approved

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Last modified October 19 11:00 EDT 2019. Contains 328216 sequences. (Running on oeis4.)