Number of length n inversion sequences avoiding the patterns 100 and 110.
A374544
Number of length n inversion sequences avoiding the patterns 100 and 110.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =6a(4) =22a(5) =93a(6) =437a(7) =2233a(8) =12227a(9) =71011a(10) =434151a(11) =2778424a(12) =18530560a(13) =128351696a(14) =920714033a(15) =6824472471a(16) =52169690544a(17) =410668022430
External references
- oeis: A374544