Number of permutations of 1..n containing the relative rank sequence { 156432 } at any spacing.
A159132
Number of permutations of 1..n containing the relative rank sequence { 156432 } at any spacing.
Terms
- a(0) =1a(1) =37a(2) =892a(3) =18097a(4) =339000a(5) =6129010a(6) =109570327a(7) =1964936896a(8) =35669679012a(9) =659440950724
External references
- oeis: A159132