Number of non-alternating permutations of {1...n}.
A348615
Number of non-alternating permutations of {1...n}.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =2a(4) =14a(5) =88a(6) =598a(7) =4496a(8) =37550a(9) =347008a(10) =3527758a(11) =39209216a(12) =473596070a(13) =6182284288a(14) =86779569238
External references
- oeis: A348615