Words of length n over the alphabet {0,...,n-1} that avoid the pattern 1231.
A239377
Words of length n over the alphabet {0,...,n-1} that avoid the pattern 1231.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =27a(4) =252a(5) =2935a(6) =40336a(7) =632870
External references
- oeis: A239377