Number of permutations of 1..n containing the relative rank sequence { 246513 } at any spacing.
A159159
Number of permutations of 1..n containing the relative rank sequence { 246513 } at any spacing.
Terms
- a(0) =1a(1) =37a(2) =894a(3) =18208a(4) =342714a(5) =6226906a(6) =111820429a(7) =2012399155a(8) =36615892177a(9) =677600234050
External references
- oeis: A159159