Number of permutations in S_n that avoid the pattern 43251.
A256203
Number of permutations in S_n that avoid the pattern 43251.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =6a(4) =24a(5) =119a(6) =694a(7) =4581a(8) =33283a(9) =260805a(10) =2171393a(11) =18994464a(12) =173094540a(13) =1632480259a(14) =15851668551a(15) =157824649955
External references
- oeis: A256203