Number of permutations of 1..n containing the relative rank sequence { 216534 } at any spacing.
A159143
Number of permutations of 1..n containing the relative rank sequence { 216534 } at any spacing.
Terms
- a(0) =1a(1) =37a(2) =892a(3) =18101a(4) =339221a(5) =6136346a(6) =109762005a(7) =1969306328a(8) =35761194738a(9) =661255164270
External references
- oeis: A159143