Number of partitions of 1 into n powers of 1/2; or (according to one definition of "binary") the number of binary rooted trees.
A002572
Number of partitions of 1 into n powers of 1/2; or (according to one definition of "binary") the number of binary rooted trees.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =3a(5) =5a(6) =9a(7) =16a(8) =28a(9) =50a(10) =89a(11) =159a(12) =285a(13) =510a(14) =914a(15) =1639a(16) =2938a(17) =5269a(18) =9451a(19) =16952a(20) =30410a(21) =54555a(22) =97871a(23) =175586a(24) =315016a(25) =565168a(26) =1013976a(27) =1819198a(28) =3263875a(29) =5855833
External references
- oeis: A002572