Number of distinct values of the (n-1)st difference of permutations of 1..n.
A130803
Number of distinct values of the (n-1)st difference of permutations of 1..n.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =11a(4) =11a(5) =121a(6) =45a(7) =355a(8) =541a(9) =3785a(10) =773a(11) =18397a(12) =3173a(13) =88881a(14) =188949a(15) =210337
External references
- oeis: A130803