Number of permutations of 1..n containing the relative rank sequence { 156423 } at any spacing.
A159131
Number of permutations of 1..n containing the relative rank sequence { 156423 } at any spacing.
Terms
- a(0) =1a(1) =37a(2) =892a(3) =18104a(4) =339402a(5) =6142870a(6) =109946165a(7) =1973820605a(8) =35862423922a(9) =663394959580
External references
- oeis: A159131