The number of permutations avoiding simultaneously consecutive patterns 132 and 213.
A173939
The number of permutations avoiding simultaneously consecutive patterns 132 and 213.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =4a(4) =11a(5) =37a(6) =149a(7) =705a(8) =3814a(9) =23199a(10) =156940a(11) =1167862a(12) =9478482a(13) =83347221a(14) =789272024a(15) =8007691756a(16) =86661018861a(17) =996483990245
External references
- oeis: A173939