Number of edge-rooted tree-like octagonal systems.
A036758
Number of edge-rooted tree-like octagonal systems.
Terms
- a(0) =1a(1) =5a(2) =31a(3) =216a(4) =1617a(5) =12705a(6) =103358a(7) =863161a(8) =7357277a(9) =63747221a(10) =559809997a(11) =4971528380a(12) =44572279612a(13) =402883616972
External references
- oeis: A036758