Number of 2-cop-win graphs of order n.
A220841
Number of 2-cop-win graphs of order n.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =1a(4) =5a(5) =44a(6) =450a(7) =7326a(8) =195519a(9) =9458257
External references
- oeis: A220841
A220841
Number of 2-cop-win graphs of order n.