|
| |
|
|
A170815
|
|
Number of permutations of 1..n with all differences of elements separated by distances 1 through 9 being respectively unique.
|
|
0
|
|
|
|
1, 2, 4, 12, 40, 116, 200, 444, 760, 2160, 4368, 7852, 12828, 17252, 19612, 21104, 18276, 15096, 10240, 6464, 3776, 2536
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
| |
| |
|
|
