Number of permutations of 1..n containing the relative rank sequence { 254613 } at any spacing.
A159165
Number of permutations of 1..n containing the relative rank sequence { 254613 } at any spacing.
Terms
- a(0) =1a(1) =37a(2) =894a(3) =18211a(4) =342874a(5) =6232019a(6) =111948601a(7) =2015190380a(8) =36671453377a(9) =678640743735
External references
- oeis: A159165