Numbers Q_n arising in computation of number of unordered unilabeled-bilabeled increasing trees.
A261001
Numbers Q_n arising in computation of number of unordered unilabeled-bilabeled increasing trees.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =11a(4) =55a(5) =337a(6) =2469a(7) =21021a(8) =204083a(9) =2225455a(10) =26933707a(11) =358263257a(12) =5195425937a(13) =81580864601
External references
- oeis: A261001