Number of labeled loop-graphs covering a subset of {1..n} such that it is possible to choose a different vertex from each edge.
A368927
Number of labeled loop-graphs covering a subset of {1..n} such that it is possible to choose a different vertex from each edge.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =39a(4) =314a(5) =3374a(6) =45630a(7) =744917a(8) =14245978a(9) =312182262a(10) =7708544246a(11) =211688132465
External references
- oeis: A368927