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A263933 Number of length n arrays of permutations of 0..n-1 with each element moved by -2 to 2 places and the total absolute value of displacements not greater than n. 1
1, 2, 3, 11, 17, 49, 80, 249, 414, 1237, 2099, 6314, 10846, 32254, 56036, 166127, 291145, 858237, 1515675, 4450576, 7910979, 23136531, 41361393, 120553201, 216600707, 629294119, 1135763262, 3290238806, 5962334608, 17226509737 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 2 of A263939.

LINKS

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

EXAMPLE

Some solutions for n=7

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

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

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

..1....3....4....2....3....2....2....3....2....3....1....2....5....2....5....2

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

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

..6....5....6....6....5....5....5....5....6....5....6....5....6....6....6....6

CROSSREFS

Cf. A263939.

Sequence in context: A051096 A051078 A051090 * A061400 A090474 A263934

Adjacent sequences:  A263930 A263931 A263932 * A263934 A263935 A263936

KEYWORD

nonn

AUTHOR

R. H. Hardin, Oct 30 2015

STATUS

approved

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Last modified April 5 00:43 EDT 2020. Contains 333238 sequences. (Running on oeis4.)