Number of permutations of 1..n containing the relative rank sequence { 42531 } at any spacing.
A158429
Number of permutations of 1..n containing the relative rank sequence { 42531 } at any spacing.
Terms
- a(0) =1a(1) =26a(2) =460a(3) =7066a(4) =102595a(5) =1464870a(6) =21016266a(7) =306985344a(8) =4605989539a(9) =71438420743
External references
- oeis: A158429