Related to label-increasing forests with branching bounded by 4.
A297202
Related to label-increasing forests with branching bounded by 4.
Terms
- a(0) =1a(1) =3a(2) =9a(3) =30a(4) =120a(5) =582a(6) =3351a(7) =22395a(8) =170505a(9) =1457238a(10) =13816869a(11) =143942445a(12) =1634497320a(13) =20093354217a(14) =265873928856
External references
- oeis: A297202