Number of permutations p of [n] with no fixed points and displacement of elements restricted by eight: 1 <= |p(i)-i| <= 8.
A259781
Number of permutations p of [n] with no fixed points and displacement of elements restricted by eight: 1 <= |p(i)-i| <= 8.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =2a(4) =9a(5) =44a(6) =265a(7) =1854a(8) =14833a(9) =133496a(10) =1053136a(11) =7429428a(12) =48212485a(13) =296810944a(14) =1780911209a(15) =10628061638a(16) =63975026748a(17) =392088233154
External references
- oeis: A259781