Number of unlabeled asymmetric 6-ary cacti having n polygons.
A054367
Number of unlabeled asymmetric 6-ary cacti having n polygons.
Terms
- a(0) =1a(1) =1a(2) =0a(3) =15a(4) =110a(5) =1095a(6) =10326a(7) =107056a(8) =1149126a(9) =12845166a(10) =147817170a(11) =1743640902a(12) =20987930112a(13) =256987965373
External references
- oeis: A054367