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A276324
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Antidiagonal indices of Greedy Queens (see A065188).
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4
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1, 4, 5, 7, 8, 14, 15, 17, 18, 19, 20, 23, 24, 30, 31, 34, 35, 40, 41, 43, 44, 45, 46, 49, 50, 54, 56, 59, 60, 62, 63, 65, 68, 69, 72, 77, 78, 81, 82, 85, 86, 89, 90, 93, 94, 95, 96, 101, 103, 106, 108, 111, 113, 114, 116, 119, 120, 122, 123, 125, 127, 128
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OFFSET
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1,2
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COMMENTS
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a(n) is the index of the antidiagonal of the n-th queen.
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LINKS
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EXAMPLE
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The first queen is in the first antidiagonal, the second queen is in the fourth antidiagonal, ... . The antidiagonals with indices 2, 3, 6, 9, ... do not contain a queen:
:
: Q//// ...
: ///Q/ ...
: /Q/// ...
: ////Q ...
: //Q// ...
: ///// ...
: .....
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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