%I
%S 4,12,16,18,20,24,28,30,32,36,40
%N Numbers n such that no group of order n is a ConCos group.
%D A. S. Muktibodh, "ConCos groups", Review Bulletin of Calcutta Mathematical Society, Vol. 11, 5356, 2003
%D A. S. Muktibodh, "Generalized ConCos groups", (K. P. Shum et al. eds.), Proceedings of the ICM Satellite Conference in Algebra and Related Topics, Hong Kong, China, World Scientific, 2003, pp. 434441.
%Y Cf. A119569, A119605.
%K nonn
%O 1,1
%A A. S. Muktibodh (amukti2000(AT)yahoo.com), Jun 08 2006
