A201027 Number of nX2 0..4 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.
10, 10, 41, 295, 159, 4587, 8476, 33401, 272191, 128622, 4546620, 8993979, 36684736, 308393680, 140796536, 5332902231, 10823034414, 44858965451, 380690718127, 170636868384, 6712393127261, 13840721168804, 57974199126361
Offset: 1
Keywords
Examples
Some solutions for n=3 ..0..2....0..2....0..0....0..1....0..1....0..1....0..2....0..3....0..1....0..2 ..1..2....0..3....1..4....2..4....2..3....1..4....1..3....2..3....0..2....2..3 ..3..4....1..4....2..3....1..3....1..4....2..3....1..4....1..4....3..4....1..4
Links
- R. H. Hardin, Table of n, a(n) for n = 1..50
Comments