Number of partitioned trees decorated by {1,2} with n nodes.
A226269
Number of partitioned trees decorated by {1,2} with n nodes.
Terms
- a(0) =2a(1) =7a(2) =32a(3) =167a(4) =952a(5) =5759a(6) =36340a(7) =236498a(8) =1576156a(9) =10702333
External references
- oeis: A226269