Number of (unlabeled) rooted trees with n leaf nodes and without unary nodes such that the maximum of the node outdegrees equals nine.
A292235
Number of (unlabeled) rooted trees with n leaf nodes and without unary nodes such that the maximum of the node outdegrees equals nine.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =23a(4) =78a(5) =262a(6) =893a(7) =3040a(8) =10410a(9) =35718a(10) =122918a(11) =423861a(12) =1464642a(13) =5069475a(14) =17574187a(15) =61007028a(16) =212044176a(17) =737835578a(18) =2570028204a(19) =8960286527a(20) =31266462620a(21) =109188954531a(22) =381589000393
External references
- oeis: A292235