A263786 Number of length n arrays of permutations of 0..n-1 with each element moved by -7 to 7 places and exactly two more elements moved upwards than downwards

0, 0, 0, 1, 5, 66, 392, 4859, 26994, 232208, 1161998, 8246455, 41787717, 274395962, 1457963344, 9504972075, 53127306403, 343749866061, 1960779086021, 12451275397390, 71531553827855, 445155989823862, 2568693912325240

Offset

1,5

Comments

Column 7 of A263787

Links

R. H. Hardin, Table of n, a(n) for n = 1..45

Example

Some solutions for n=7
..6....6....0....4....6....6....5....3....2....6....5....0....6....4....5....6
..0....1....6....0....4....5....6....0....0....5....4....5....1....0....0....1
..5....2....1....5....1....1....2....6....6....2....1....1....5....1....6....4
..2....0....5....2....2....2....0....1....1....0....2....2....0....6....1....2
..4....3....2....1....3....4....3....4....3....3....0....4....3....3....4....0
..1....5....3....3....5....3....1....2....5....1....3....3....2....5....3....3
..3....4....4....6....0....0....4....5....4....4....6....6....4....2....2....5

Crossrefs

Cf. A263787

Sequence in context: A183899 A263784 A263785 * A169934 A162443 A219678

Adjacent sequences: A263783 A263784 A263785 * A263787 A263788 A263789

Keyword

nonn

Author

R. H. Hardin, Oct 26 2015

Status

approved