Number of permutations of [n] avoiding the consecutive pattern 45321.

A202213

Number of permutations of [n] avoiding the consecutive pattern 45321.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =6a(4) =24a(5) =119a(6) =708a(7) =4914a(8) =38976a(9) =347765a(10) =3447712a(11) =37598286a(12) =447294144a(13) =5764747515a(14) =80011430240

External references