A263642 Number of length n arrays of permutations of 0..n-1 with each element moved by -7 to 7 places and with no two consecutive increases.

1, 2, 5, 17, 70, 349, 2017, 13358, 74678, 335720, 1500041, 6440272, 28038374, 123298684, 556103807, 2564034001, 11893926843, 55032401086, 253092976011, 1160780168755, 5299878003384, 24174899648334, 110233336977738

Offset: 1

Author

R. H. Hardin, Oct 22 2015

Keywords

• nonn

Comments

Column 7 of A263643.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210

Crossrefs

Cf. A263643.