Number of permutations of 1..n containing the relative rank sequence { 214635 } at any spacing.
A159142
Number of permutations of 1..n containing the relative rank sequence { 214635 } at any spacing.
Terms
- a(0) =1a(1) =37a(2) =893a(3) =18147a(4) =340508a(5) =6164947a(6) =110320096a(7) =1979352513a(8) =35932666632a(9) =664075359756
External references
- oeis: A159142