%I
%S 0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
%T 0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
%U 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
%N Number of solutions of EulerPhi[x]=12n+2.
%e Among the first 10000 cases only 16 invphi(12j+2) set are nonempty, always with 2 terms. E.g. n=8034, a(8034)=2 because 12*8034+2=96410 and invphi(96410)={96721,193442}.
%p with(numtheory): [seq(nops(invphi(2+12*j)),j=1..10000)];
%Y A000010, A005277, A002202.
%K nonn
%O 1,9
%A _Labos Elemer_, Aug 22 2001
