

A263903


Number of length n arrays of permutations of 0..n1 with each element moved by 6 to 6 places and the total absolute value of displacements not greater than 2*(n1).


1



1, 2, 6, 20, 76, 300, 1252, 5197, 21735, 91151, 384641, 1629124, 6927800, 29539650, 126281489, 540980783, 2321907944, 9982050981, 42977082052, 185279158666, 799716576405, 3455546697332, 14946086528673, 64704061451845
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OFFSET

1,2


COMMENTS



LINKS



EXAMPLE

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


CROSSREFS



KEYWORD

nonn


AUTHOR



STATUS

approved



