A200079 Number of 0..5 arrays x(0..n) of n+1 elements with zero n-1st differences.

1, 6, 12, 26, 58, 108, 202, 394, 468, 848, 2560, 7740, 11372, 28356, 20660, 20032, 68026, 312678, 662542, 1536878, 812306, 461910, 1466416, 10325202

Offset: 1

Author

R. H. Hardin Nov 13 2011

Keywords

• nonn

Comments

Column 5 of A200082

Examples

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