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%I #7 Oct 09 2021 04:42:21
%S 2,6,11,14,26,35,41,45,51
%N Nonsquares not representable as p+g, where p is a prime and g is a primitive root of p.
%C This is sequence is probably complete.
%C There are no more terms below 10^5. - _Amiram Eldar_, Oct 09 2021
%t seq[m_] := Module[{p = Select[Range[m], PrimeQ], s}, s = Complement[Range[m], p + PrimitiveRootList[p] // Flatten]; Select[s, !IntegerQ @ Sqrt[#] &]]; seq[100] (* _Amiram Eldar_, Oct 09 2021 *)
%Y Cf. A060749 (primitive roots), A138326.
%K nonn,more
%O 1,1
%A _T. D. Noe_, Mar 14 2008
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