A263742 Number of length n arrays of permutations of 0..n-1 with each element moved by -6 to 6 places and equal numbers of elements moved upwards and downwards

1, 2, 4, 14, 46, 282, 1394, 10090, 44914, 266476, 1144246, 6123066, 27514165, 148657877, 712133826, 3868859444, 19001179140, 101945373036, 505520499480, 2672357669178, 13361279040764, 70132283967884, 354087976208204

Offset

1,2

Comments

Column 6 of A263744

Links

R. H. Hardin, Table of n, a(n) for n = 1..96

Example

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

Crossrefs

Cf. A263744

Sequence in context: A266695 A327034 A263741 * A263743 A062868 A054936

Adjacent sequences: A263739 A263740 A263741 * A263743 A263744 A263745

Keyword

nonn

Author

R. H. Hardin, Oct 25 2015

Status

approved