Number of generalized {(1,2),(1,-1)}-Dyck paths of length 3n with no peaks at level 2.
A089354
Number of generalized {(1,2),(1,-1)}-Dyck paths of length 3n with no peaks at level 2.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =4a(4) =19a(5) =96a(6) =508a(7) =2780a(8) =15607a(9) =89392a(10) =520337a(11) =3069232a(12) =18305876a(13) =110214144a(14) =668950744a(15) =4088824140a(16) =25146253311a(17) =155491812384a(18) =966142729939
External references
- oeis: A089354