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A263758 Number of length n arrays of permutations of 0..n-1 with each element moved by -2 to 2 places and exactly one more element moved upwards than downwards 1
0, 0, 1, 2, 6, 14, 38, 88, 217, 506, 1209, 2810, 6600, 15308, 35653, 82532, 191371, 442428, 1023499, 2364324, 5463084, 12614628, 29131729, 67256334, 155289747, 358522126, 827816037, 1911447100, 4414086763, 10194246046, 23546391253 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

Column 2 of A263764

LINKS

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

EXAMPLE

Some solutions for n=7

..0....0....1....2....2....1....2....2....0....2....0....2....2....1....0....0

..3....1....0....0....0....0....0....1....2....0....1....0....0....0....2....3

..1....2....3....1....1....4....1....0....1....4....3....1....4....2....1....1

..2....3....2....3....3....2....5....5....3....1....2....5....1....3....5....5

..5....6....6....6....5....6....6....3....6....6....6....3....3....6....3....2

..4....4....4....5....4....3....3....4....4....3....4....6....5....4....4....4

..6....5....5....4....6....5....4....6....5....5....5....4....6....5....6....6

CROSSREFS

Cf. A263764

Sequence in context: A006864 A217420 A071636 * A100067 A026597 A122112

Adjacent sequences:  A263755 A263756 A263757 * A263759 A263760 A263761

KEYWORD

nonn

AUTHOR

R. H. Hardin, Oct 25 2015

STATUS

approved

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Last modified August 1 07:45 EDT 2021. Contains 346384 sequences. (Running on oeis4.)