A250650 Number of length 6+1 0..n arrays with the sum of the maximum of each adjacent pair multiplied by some arrangement of +-1 equal to zero.

72, 1061, 7696, 34441, 120114, 332827, 812004, 1749359, 3497934, 6469165, 11395070, 19047473, 30746306, 47793245, 72401338, 106583429, 153809996, 217072541, 301491734, 411350415, 553983224, 735181841, 965180792, 1251735269

Offset: 1

Author

R. H. Hardin, Nov 26 2014

Keywords

• nonn

Comments

Row 6 of A250646

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..55