Number of distinct cycles without repeated edges on the multigraph consisting of two vertices joined by n edges.
A178061
Number of distinct cycles without repeated edges on the multigraph consisting of two vertices joined by n edges.
Terms
- a(0) =0a(1) =0a(2) =1a(3) =3a(4) =9a(5) =25a(6) =120a(7) =546a(8) =4438a(9) =28134a(10) =308115a(11) =2440405a(12) =33237831a(13) =314699463a(14) =5119097074a(15) =56345113020
External references
- oeis: A178061