Number of permutations of 1..n containing the relative rank sequence { 132645 } at any spacing.
A159091
Number of permutations of 1..n containing the relative rank sequence { 132645 } at any spacing.
Terms
- a(0) =1a(1) =37a(2) =892a(3) =18096a(4) =338925a(5) =6125833a(6) =109468530a(7) =1962169602a(8) =35601982205a(9) =657898464017
External references
- oeis: A159091