Number of permutations of 1..n containing the relative rank sequence { 136425 } at any spacing.
A159105
Number of permutations of 1..n containing the relative rank sequence { 136425 } at any spacing.
Terms
- a(0) =1a(1) =37a(2) =896a(3) =18300a(4) =345279a(5) =6283563a(6) =112917410a(7) =2031975924a(8) =36947165614a(9) =683007388087
External references
- oeis: A159105