Related to label-increasing forests with branching bounded by 4.
A297201
Related to label-increasing forests with branching bounded by 4.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =10a(4) =34a(5) =148a(6) =786a(7) =4920a(8) =35446a(9) =288822a(10) =2625844a(11) =26349340a(12) =289248224a(13) =3447860798a(14) =44348374106a(15) =612228009210
External references
- oeis: A297201