Number of increasing interval-labeled restricted ternary trees on the label set {0,1,...,n}.
A390399
Number of increasing interval-labeled restricted ternary trees on the label set {0,1,...,n}.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =23a(4) =109a(5) =632a(6) =4390a(7) =35621a(8) =330545a(9) =3451774a(10) =40059838a(11) =511501123a(12) =7125766429a(13) =107553198708
External references
- oeis: A390399