Number of permutations of 1..n containing the relative rank sequence { 136452 } at any spacing.
A159106
Number of permutations of 1..n containing the relative rank sequence { 136452 } at any spacing.
Terms
- a(0) =1a(1) =37a(2) =894a(3) =18202a(4) =342355a(5) =6214207a(6) =111471456a(7) =2004122703a(8) =36437169504a(9) =673975111446
External references
- oeis: A159106