[seqfan] "zig-zag pseudoprimes"
Vladimir Shevelev
shevelev at bgu.ac.il
Wed Sep 1 09:55:20 CEST 2010
Dear SeqFans,
Recently I proved (not basing on Fermat little theorem) that if n==1(mod 4) is prime, then
A000111(n)==1(mod n); if n==3(mod 4) is prime, then A000111(n)==-1(mod n).
I call possible composite numbers m with such property "zig-zag pseudoprimes". If anyone can find a few zig-zag pseudoprimes and in case of success - to submit sequence of them?
Regards,
Vladimir
Shevelev Vladimir
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