Number of n-node labeled graphs with three endpoints.
A277074
Number of n-node labeled graphs with three endpoints.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =4a(4) =80a(5) =1860a(6) =64680a(7) =3666600a(8) =354093264a(9) =59372032440
External references
- oeis: A277074