Number of signed permutations of length n with adjacent elements differing by more than 1.
A370766
Number of signed permutations of length n with adjacent elements differing by more than 1.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =20a(4) =156a(5) =1540a(6) =18268a(7) =253380a(8) =4024220a(9) =72006788a(10) =1433150940a(11) =31402068292a(12) =751081569820
External references
- oeis: A370766