A209045 Number of nX6 0..3 arrays with no element equal the average of immediate neighbors vertically above and horizontally left of it.
972, 1503212, 2364812680, 3724317998214, 5866193355938718, 9239962457023110368, 14554067523333615991960, 22924432479225632829691864, 36108778942762030367945973348, 56875733727363424301468394080962
Offset: 1
Keywords
Examples
Some solutions for n=4 ..0..1..0..3..2..3....2..0..1..2..0..2....2..3..1..0..1..3....0..3..0..1..0..3 ..1..2..2..1..3..2....3..0..1..3..2..0....0..0..1..1..2..3....3..0..2..1..0..1 ..0..3..3..0..1..3....0..1..0..1..0..1....3..3..3..0..0..2....0..1..1..0..3..3 ..2..1..1..2..1..1....3..3..3..3..3..0....1..1..3..1..0..0....1..2..3..3..0..3
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
Comments