A008403 G-symmetric Costas arrays of order n that are inequivalent under dihedral group but are not given by the Welch construction.

0, 0, 0, 0, 1, 1, 0, 3, 0, 14, 0, 32, 4, 31, 0, 45, 0, 2, 0, 3, 0, 0, 0

Offset

1,8

References

CRC Handbook of Combinatorial Designs, C. Colbourn and J. Dinitz, Editors, IV.7: Costas Arrays by Herbert Taylor (IV.7.6, page 259, Table 2.29).

Links

Table of n, a(n) for n=1..23.

Eric Weisstein's World of Mathematics, Costas Array

Crossrefs

Cf. A008404, A001440, A001441, A001442.

Sequence in context: A222754 A181905 A350826 * A138349 A369918 A323689

Adjacent sequences: A008400 A008401 A008402 * A008404 A008405 A008406

Keyword

nonn,hard,more

Author

N. J. A. Sloane.

Status

approved