Number of rooted ordered trees with n nodes such that the degree of each node is less than or equal to its depth plus one.
A382060
Number of rooted ordered trees with n nodes such that the degree of each node is less than or equal to its depth plus one.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =4a(6) =10a(7) =27a(8) =77a(9) =231a(10) =719a(11) =2302a(12) =7541a(13) =25177a(14) =85405a(15) =293635a(16) =1021272a(17) =3587674a(18) =12713796a(19) =45402113a(20) =163244197a(21) =590529759a(22) =2147915920a(23) =7851127319a(24) =28826079193a(25) =106268313333a(26) =393218951710
External references
- oeis: A382060