A263902 Number of length n arrays of permutations of 0..n-1 with each element moved by -5 to 5 places and the total absolute value of displacements not greater than 2*(n-1).
1, 2, 6, 20, 76, 300, 1189, 4701, 18754, 75243, 303407, 1227560, 4981002, 20260788, 82579632, 337175123, 1378826528, 5646408697, 23151632776, 95034718893, 390504864746, 1606102645910, 6611314522432, 27235758104621, 112279739875866
Offset: 1
Keywords
Examples
Some solutions for n=7 ..4....1....4....2....1....0....0....2....3....2....3....1....0....2....0....2 ..0....5....0....0....0....2....3....0....0....0....2....2....6....1....6....0 ..2....0....2....3....2....3....4....5....1....3....0....5....1....0....2....4 ..1....4....5....4....6....1....1....1....4....6....5....4....2....6....1....5 ..5....3....1....1....3....5....5....4....6....4....1....0....5....3....3....1 ..3....2....3....6....5....6....6....3....2....1....4....3....4....4....5....3 ..6....6....6....5....4....4....2....6....5....5....6....6....3....5....4....6
Links
- R. H. Hardin, Table of n, a(n) for n = 1..122
Crossrefs
Cf. A263905.
Comments