A246603 - OEIS

%I #13 Oct 19 2017 10:46:17

%S 1,1,7,37,37,37,37,1423,10987,13297,219277,219277,669463,2215987,

%T 7841563,33376753,54444163,112545673,267625087,1676296087,2772262903,

%U 2782012963,4341199657,34694683237,39965586763,232265913427,1879768081657,1879768081657

%N -a(n) is the greatest negative primitive root that all of the first n primes share.

%D _Don Reble_, Posting to Sequence Fans Mailing List, Sep 07 2014

%Y Cf. A002199, A128895.

%K nonn

%O 1,3

%A _N. J. A. Sloane_, Sep 09 2014