%N Numbers n such that n is not an odd prime and not a square of prime and the n-th Motzkin number == 1 (mod n).
%C No more terms through 6000000. - _Ryan Propper_, Sep 18 2005
%Y Cf. A001006.
%A _Benoit Cloitre_, Apr 06 2003
%E 2 more terms from _Ryan Propper_, Sep 18 2005