Number of permutations of 1..n containing the relative rank sequence { 256143 } at any spacing.
A159166
Number of permutations of 1..n containing the relative rank sequence { 256143 } at any spacing.
Terms
- a(0) =1a(1) =37a(2) =894a(3) =18213a(4) =342987a(5) =6235874a(6) =112052824a(7) =2017665690a(8) =36725776559
External references
- oeis: A159166