Number of labeled graphs on n nodes with degree set {2,4}, with multiple edges and loops allowed.
A228696
Number of labeled graphs on n nodes with degree set {2,4}, with multiple edges and loops allowed.
Terms
- a(0) =1a(1) =2a(2) =9a(3) =65a(4) =751a(5) =13044a(6) =320803a(7) =10609256a(8) =453774440a(9) =24375801464
External references
- oeis: A228696