A200665 Number of 0..5 arrays x(0..n-1) of n elements with each no smaller than the sum of its three previous neighbors modulo 6.

6, 21, 75, 267, 938, 3283, 11516, 40399, 141745, 497298, 1744684, 6121152, 21475315, 75342932, 264330011, 927363850, 3253519870, 11414498822, 40046099291, 140495874086, 492909198404, 1729299730308, 6066994825927, 21285162746386

Offset: 1

Author

R. H. Hardin Nov 20 2011

Keywords

• nonn

Comments

Column 5 of A200668

Examples

			Some solutions for n=6
..0....2....3....0....3....4....1....1....2....0....2....4....0....1....0....1
..3....4....3....0....5....5....5....4....2....3....2....5....1....3....1....2
..3....1....0....0....5....3....2....5....5....5....5....4....5....5....5....3
..1....2....5....0....3....4....5....4....5....4....3....2....1....4....3....3
..2....5....3....0....4....3....4....4....4....5....4....5....2....3....4....3
..5....3....3....4....4....4....5....3....4....4....0....5....2....1....4....3