Number of permutations avoiding the consecutive pattern 43521.

A202225

Number of permutations avoiding the consecutive pattern 43521.

Terms

    a(0) =1a(1) =2a(2) =6a(3) =24a(4) =119a(5) =708a(6) =4914a(7) =38980a(8) =347837a(9) =3448792a(10) =37614098a(11) =447531000a(12) =5768428803a(13) =80071254648

External references