Observation on A053669
David Wilson
davidwwilson at comcast.net
Sat Nov 4 21:10:45 CET 2006
It seems to me that
%N A053669 Smallest prime co-prime to n.
could just as easily be described
%N A053669 Smallest number > 1 coprime to n.
and the fact that a(n) is prime falls out. This definition would also simplify the program.
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