Number of inequivalent Costas arrays of order n under dihedral group.

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =6a(5) =17a(6) =30a(7) =60a(8) =100a(9) =277a(10) =555a(11) =990a(12) =1616a(13) =2168a(14) =2467a(15) =2648a(16) =2294a(17) =1892a(18) =1283a(19) =810a(20) =446a(21) =259a(22) =114a(23) =25a(24) =12a(25) =8a(26) =29a(27) =89a(28) =23