A360462 Number of permutations p of [n] such that |p(i+9) - p(i)| <> 9 for i in [n-9].
1, 1, 2, 6, 24, 120, 720, 5040, 40320, 362880, 3548160, 37054080, 416551680, 5050368000, 65944535040, 924630958080, 13873661706240, 221978587299840, 3774394191052800, 67494538767237120, 1276009602375352320, 25429720417085030400
Offset: 0