Number of permutations of length n avoiding the patterns 14253 and 13524.
A247472
Number of permutations of length n avoiding the patterns 14253 and 13524.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =6a(4) =24a(5) =118a(6) =672a(7) =4255a(8) =29146a(9) =212028a(10) =1617344a(11) =12819065a(12) =104870276a(13) =881047470a(14) =7571873230a(15) =66363349857
External references
- oeis: A247472