A263665 - OEIS

A263665

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 or two consecutive decreases.

1, 2, 4, 10, 32, 122, 544, 2770, 13102, 53324, 201822, 744369, 2681622, 9781781, 35830358, 134471953, 510679902, 1948913086, 7413069078, 28251926154, 106925701022, 405357452874, 1528103687814, 5781674554622, 21790410540302

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OFFSET

1,2

COMMENTS

Column 7 of A263666.

LINKS

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

EXAMPLE

Some solutions for n=7

..3....4....0....4....3....2....6....3....5....5....6....2....3....3....2....2

..0....3....3....6....4....6....1....4....2....1....1....5....5....2....0....5

..6....5....2....3....1....1....2....0....4....3....3....4....1....5....6....0