Number of nonequivalent noncrossing 4-gonal cacti with n polygons up to rotation.
A361238
Number of nonequivalent noncrossing 4-gonal cacti with n polygons up to rotation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =8a(4) =63a(5) =664a(6) =7462a(7) =90896a(8) =1159587a(9) =15369761a(10) =209785576a(11) =2933152208a(12) =41833725570a(13) =606735330572
External references
- oeis: A361238