A201216 T(n,k)=Number of nXk 0..3 arrays with every row and column running average nondecreasing rightwards and downwards.
4, 10, 10, 23, 50, 23, 51, 216, 216, 51, 110, 867, 1684, 867, 110, 233, 3318, 11932, 11932, 3318, 233, 488, 12314, 79739, 146946, 79739, 12314, 488, 1013, 44858, 512681, 1692945, 1692945, 512681, 44858, 1013, 2088, 161257, 3216277, 18624423, 33635880
Offset: 1
Examples
Some solutions for n=4 k=4 ..0..0..2..1....0..0..1..1....0..0..0..0....0..0..0..1....0..0..0..1 ..0..0..3..1....0..1..2..2....0..0..2..3....0..0..1..1....0..0..1..1 ..3..3..3..3....1..1..3..3....0..0..2..2....0..0..3..3....3..3..3..3 ..1..2..3..2....2..2..2..3....0..3..2..3....2..2..2..3....1..1..2..3
Links
- R. H. Hardin, Table of n, a(n) for n = 1..111
Crossrefs
Column 1 is A200759
Comments