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A223060
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Number of n X 6 0..3 arrays with all horizontally or vertically connected equal values in a straight line, and new values 0..3 introduced in row major order.
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1
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187, 255045, 412602889, 677531592132, 1115636153544055, 1837966217755803448, 3028264612325675509047, 4989509449716896144976736, 8220974979731088191278751151, 13545313950246233778034214834568
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OFFSET
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1,1
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=3
..0..1..0..2..3..0....0..1..0..1..2..3....0..1..0..2..0..3....0..1..0..1..2..3
..0..1..0..1..2..2....0..1..0..1..2..1....0..1..0..1..0..1....0..1..0..3..2..1
..0..2..1..3..1..0....0..2..2..2..0..3....0..2..2..1..3..3....0..2..3..0..2..3
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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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