Number of symmetric Costas arrays of order n that are inequivalent under dihedral group.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =5a(6) =10a(7) =9a(8) =10a(9) =14a(10) =18a(11) =17a(12) =25a(13) =23a(14) =31a(15) =20a(16) =19a(17) =10a(18) =6a(19) =4a(20) =8a(21) =5a(22) =10a(23) =0a(24) =2a(25) =2a(26) =7a(27) =0a(28) =5a(29) =4