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A215742
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Number of horizontal, vertical, diagonal and antidiagonal neighbor colorings of the odd squares of an n X 5 array with new integer colors introduced in row major order.
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1
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1, 1, 5, 22, 1250, 24236, 4851360, 190497926, 83943993818, 5303141087778, 4173873098644366, 378359478068949014, 472112409203884877570, 57309542487149770566536, 104912731359552572271902248, 16280064095604977906371524266, 41397926646267697867589499650186
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OFFSET
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0,3
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LINKS
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EXAMPLE
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Some solutions for n=3:
..x..0..x..1..x....x..0..x..1..x....x..0..x..1..x....x..0..x..1..x
..2..x..3..x..2....2..x..3..x..4....2..x..3..x..0....2..x..3..x..4
..x..4..x..0..x....x..5..x..0..x....x..4..x..5..x....x..4..x..5..x
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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a(0)=1 prepended and terms a(10) and beyond from Andrew Howroyd, Jun 25 2017
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STATUS
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approved
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