Number of permutations that avoid the consecutive pattern 2413.

A201693

Number of permutations that avoid the consecutive pattern 2413.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =6a(4) =23a(5) =110a(6) =632a(7) =4237a(8) =32465a(9) =279828a(10) =2679950a(11) =28232972a(12) =324470844a(13) =4039771856a(14) =54165468774a(15) =778128659247

External references