A066587 = A047621(?)

[zak seidov]

Neil, Bob, seqfans,
are these the same?
Zak

%S A047621
3,5,11,13,19,21,27,29,35,37,43,45,51,53,59,61,67,69,75,77,83,85,91,93,
99,101,107,109,115,117,123,125,131,133,139,141,147,149,155,157,163,
165,171,173,179,181,187,189
%N A047621 Numbers that are congruent to {3, 5} mod 8.


%S A066587
3,5,11,13,19,21,27,29,35,37,43,45,51,53,59,61,67,69,75,77,83,85,91,93,
99,101,107,109,115,117,123,125,131,133,139,141,147,149,155,157,163,
165,171,173,179,181,187,189,195,197,203,205,211,213,219,221,227,229
%N A066587 Numbers n such that n is not a quadratic
residue of 2^n - n^2 (mod n).

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