OFFSET
1,2
COMMENTS
A maximum of n^2 nonattacking kings may be placed on a 2n X 2n chessboard.
FORMULA
a(n) = A236679(2n+1, n^2).
EXAMPLE
For n = 2 there are a(2) = 14 distinct solutions from 79 that will not be repeated at all possible turns and reflections.
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1. 2.
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3. 4.
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5. 6.
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7. 8.
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9. 10.
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11. 12.
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13. 14.
_________________ _________________
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CROSSREFS
KEYWORD
nonn,more
AUTHOR
Anton Nikonov, Dec 21 2018
EXTENSIONS
a(4)-a(10) from Andrew Howroyd, Dec 21 2018
STATUS
approved