Number of locally disjoint rooted semi-identity trees with n unlabeled vertices.
A331783
Number of locally disjoint rooted semi-identity trees with n unlabeled vertices.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =4a(4) =8a(5) =17a(6) =37a(7) =83a(8) =191a(9) =450a(10) =1076a(11) =2610a(12) =6404a(13) =15875a(14) =39676a(15) =99880a(16) =253016a(17) =644524a(18) =1649918a(19) =4242226
External references
- oeis: A331783