Number of permutations in S_n that avoid the pattern 42351.
A256200
Number of permutations in S_n that avoid the pattern 42351.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =6a(4) =24a(5) =119a(6) =694a(7) =4580a(8) =33252a(9) =260204a(10) =2161930a(11) =18861307a(12) =171341565a(13) =1610345257a(14) =15579644765a(15) =154541844196
External references
- oeis: A256200