%I #8 Jun 08 2012 07:23:37
%S 1,1,0,2,1,4,0,3,0,24,0,44,4,31,0,77,0,29,0,3,0,55,0
%N G-symmetric Costas arrays of order n that are inequivalent under dihedral group.
%D CRC Handbook of Combinatorial Designs, C. Colbourn and J. Dinitz, Editors, 1996, IV.7: Costas Arrays by Herbert Taylor (IV.7.6, page 259, Table 2.29).
%Y Cf. A008404, A001440, A001441, A008403.
%K nonn,hard,more,nice
%O 1,4
%A _N. J. A. Sloane_.