Number of permutations of 1..n containing the relative rank sequence { 136245 } at any spacing.
A159103
Number of permutations of 1..n containing the relative rank sequence { 136245 } at any spacing.
Terms
- a(0) =1a(1) =37a(2) =895a(3) =18247a(4) =343572a(5) =6239984a(6) =111942670a(7) =2011895627a(8) =36555126641a(9) =675623987378
External references
- oeis: A159103