A200270 Number of 0..6 arrays x(0..n+1) of n+2 elements with zero (n-1)th differences.

1, 7, 13, 25, 37, 53, 53, 83, 119, 261, 477, 955, 615, 1617, 937, 2447, 5409, 13829, 9379, 17547

Offset: 1

Author

R. H. Hardin, Nov 15 2011

Keywords

• nonn

Examples

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

Crossrefs

Column 6 of A200272.