A229319 Number of nX6 0..3 arrays of the median of the corresponding element, the element to the east and the element to the south in a larger (n+1)X7 0..3 array without adjacent equal elements in the latter.
2196, 1203222, 310664552, 69027667944, 14999158146398, 3239971166331308
Offset: 1
Keywords
Examples
Some solutions for n=2 ..0..2..1..2..0..2....0..1..0..2..0..2....0..1..0..3..1..2....0..2..0..3..1..0 ..2..0..3..1..2..2....3..2..2..0..2..3....1..1..2..0..2..1....2..0..3..1..1..2
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