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A001440
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Number of symmetric Costas arrays of order n that are inequivalent under dihedral group.
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3
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1, 1, 1, 1, 2, 5, 10, 9, 10, 14, 18, 17, 25, 23, 31, 20, 19, 10, 6, 4, 8, 5, 10, 0, 2, 2, 7, 0, 5, 4, 0, 0
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OFFSET
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1,5
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REFERENCES
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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).
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LINKS
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CROSSREFS
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KEYWORD
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nonn,hard,more
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AUTHOR
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STATUS
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approved
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