Number of permutations of 1..n containing the relative rank sequence { 136542 } at any spacing.
A159108
Number of permutations of 1..n containing the relative rank sequence { 136542 } at any spacing.
Terms
- a(0) =1a(1) =37a(2) =893a(3) =18152a(4) =340805a(5) =6175518a(6) =110615379a(7) =1986526444a(8) =36092306837a(9) =667427556805
External references
- oeis: A159108