Number of permutations of 1..n containing the relative rank sequence { 164523 } at any spacing.
A159137
Number of permutations of 1..n containing the relative rank sequence { 164523 } at any spacing.
Terms
- a(0) =1a(1) =37a(2) =892a(3) =18099a(4) =339112a(5) =6132764a(6) =109668949a(7) =1967187306a(8) =35716647751
External references
- oeis: A159137