A320573 a(n) gives the number of configurations of non-attacking rooks on an n X n chessboard such that the number of distinct distances between the rooks is given by A320448(n).

1, 2, 6, 8, 8, 24, 48, 32, 32, 16, 48, 24, 144, 72

Offset: 1

Author

Peter Kagey, Oct 15 2018

Keywords

• nonn
• more

Examples

			For n = 6 the a(6) = 24 solutions are the eight symmetries of
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Crossrefs

Cf. A319476, A320575, A320576, A320448, A320573, A320574.

Extensions

a(11)-a(14) from Giovanni Resta, Oct 21 2018