Number of permutations of 1..n containing the relative rank sequence { 251634 } at any spacing.
A159162
Number of permutations of 1..n containing the relative rank sequence { 251634 } at any spacing.
Terms
- a(0) =1a(1) =37a(2) =895a(3) =18258a(4) =344233a(5) =6263626a(6) =112602572a(7) =2027839529a(8) =36906526882
External references
- oeis: A159162