A263785 Number of length n arrays of permutations of 0..n-1 with each element moved by -6 to 6 places and exactly two more elements moved upwards than downwards.
0, 0, 0, 1, 5, 66, 392, 3522, 15699, 104014, 463811, 2735525, 12858073, 74523350, 369725340, 2110660483, 10653316753, 59256398945, 300481718854, 1633653025795, 8329842362903, 44742563812167, 229817730687508, 1226116608834208
Offset: 1
Keywords
Examples
Some solutions for n=7 ..4....0....6....5....6....0....6....2....0....5....4....3....3....6....6....4 ..0....6....0....6....5....6....5....0....6....1....1....5....0....0....0....0 ..1....5....2....0....1....3....1....1....1....0....0....0....1....4....1....6 ..3....1....3....3....3....2....3....6....4....2....2....1....2....2....4....2 ..2....2....1....2....2....1....0....4....3....6....3....2....5....1....3....3 ..6....4....5....1....4....4....4....3....2....4....6....4....4....5....5....5 ..5....3....4....4....0....5....2....5....5....3....5....6....6....3....2....1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..96
Crossrefs
Cf. A263787
Comments