A250674 Number of (n+1)X(6+1) 0..3 arrays with nondecreasing x(i,j)+x(i,j-1) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction.
637948, 16949262, 345255872, 5726252240, 81461365899, 1009432228498, 11161659240791, 111900180498102, 1030597712205895, 8812068752088130, 70559356373093922, 532907016216005428, 3819559062732066364
Offset: 1
Keywords
Examples
Some solutions for n=1 ..0..2..2..2..2..0..1....0..3..0..0..3..0..3....0..1..0..1..2..1..2 ..0..2..2..3..3..1..3....0..3..2..3..0..3..0....0..1..1..0..3..3..0
Links
- R. H. Hardin, Table of n, a(n) for n = 1..77
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