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 A263743 Number of length n arrays of permutations of 0..n-1 with each element moved by -7 to 7 places and equal numbers of elements moved upwards and downwards. 1
 1, 2, 4, 14, 46, 282, 1394, 12658, 68834, 535262, 2657220, 17475120, 85950104, 527877048, 2718408447, 16862137915, 91926451748, 573370470804, 3205404296496, 19797261171758, 111841627799232, 680889785121642, 3871436713513634 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS R. H. Hardin, Table of n, a(n) for n = 1..45 EXAMPLE Some solutions for n=7 ..0....2....4....4....5....4....1....5....1....2....4....6....0....4....0....5 ..4....1....1....3....1....5....5....4....0....4....1....3....5....3....1....1 ..1....5....6....5....4....6....2....1....2....6....0....2....6....2....2....4 ..2....6....5....0....0....3....6....3....6....3....5....5....4....0....3....2 ..5....3....3....2....3....1....0....6....5....1....6....0....3....1....5....6 ..6....0....2....1....6....0....4....0....4....0....3....4....1....6....4....0 ..3....4....0....6....2....2....3....2....3....5....2....1....2....5....6....3 CROSSREFS Column 7 of A263744. Sequence in context: A327034 A263741 A263742 * A062868 A054936 A006443 Adjacent sequences:  A263740 A263741 A263742 * A263744 A263745 A263746 KEYWORD nonn AUTHOR R. H. Hardin, Oct 25 2015 STATUS approved

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Last modified September 26 11:10 EDT 2020. Contains 337357 sequences. (Running on oeis4.)