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