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A246603
-a(n) is the greatest negative primitive root that all of the first n primes share.
0
1, 1, 7, 37, 37, 37, 37, 1423, 10987, 13297, 219277, 219277, 669463, 2215987, 7841563, 33376753, 54444163, 112545673, 267625087, 1676296087, 2772262903, 2782012963, 4341199657, 34694683237, 39965586763, 232265913427, 1879768081657, 1879768081657
OFFSET
1,3
REFERENCES
Don Reble, Posting to Sequence Fans Mailing List, Sep 07 2014
CROSSREFS
Sequence in context: A129737 A176544 A281994 * A043374 A038478 A043010
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Sep 09 2014
STATUS
approved