Number of permutations of {1,2,...n} for which differences of adjacent numbers are all distinct.
A131529
Number of permutations of {1,2,...n} for which differences of adjacent numbers are all distinct.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =12a(4) =44a(5) =176a(6) =788a(7) =3936a(8) =23264a(9) =152112a(10) =1104876a(11) =8725320a(12) =74715908a(13) =687915040a(14) =6782261964a(15) =71294227456a(16) =796138700016
External references
- oeis: A131529