Number of permutations p of [n] with no fixed points and displacement of elements restricted by nine: 1 <= |p(i)-i| <= 9.
A259782
Number of permutations p of [n] with no fixed points and displacement of elements restricted by nine: 1 <= |p(i)-i| <= 9.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =2a(4) =9a(5) =44a(6) =265a(7) =1854a(8) =14833a(9) =133496a(10) =1334961a(11) =11881152a(12) =95568369a(13) =709693034a(14) =4983272692a(15) =33840285766a(16) =226398597533
External references
- oeis: A259782