Number of sequences with n copies each of 1,2,...,5 avoiding the pattern 12...5.
A269123
Number of sequences with n copies each of 1,2,...,5 avoiding the pattern 12...5.
Terms
- a(0) =1a(1) =119a(2) =102011a(3) =117392909a(4) =142951955371
External references
- oeis: A269123