A201229 Number of nX2 0..3 arrays with every row and column running average nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.
6, 2, 34, 24, 306, 152, 2697, 1709, 26353, 14274, 256132, 155679, 2577102, 1435626, 25812024, 15341134, 262850473, 148007489, 2677750617, 1572346141, 27580713570, 15652657223, 284558852486, 165998453918, 2956634276151, 1686097239526
Offset: 1
Keywords
Examples
Some solutions for n=10 ..0..0....0..1....0..0....0..0....0..0....0..0....0..0....0..0....0..0....0..0 ..0..0....0..1....0..0....0..0....0..1....0..0....0..0....0..0....0..1....0..1 ..0..2....0..1....0..1....0..2....0..2....0..1....0..2....0..3....0..2....0..1 ..2..2....0..1....1..3....1..1....0..1....1..1....1..1....1..1....0..1....0..3 ..3..3....0..3....1..1....1..1....2..3....2..2....1..2....1..3....1..3....2..2 ..1..3....2..2....1..3....1..3....3..3....1..3....2..3....1..3....3..3....1..2 ..1..2....3..3....2..3....2..3....2..2....2..2....1..2....2..2....2..3....3..3 ..1..3....2..3....2..2....3..3....1..2....1..2....1..2....1..3....1..2....2..3 ..1..2....1..3....3..3....2..3....1..3....3..3....3..3....2..3....2..3....1..3 ..1..3....2..2....2..2....2..2....1..3....3..3....3..3....2..2....1..2....1..2
Links
- R. H. Hardin, Table of n, a(n) for n = 1..82
Comments