Number of 2-colored graphs on n labeled nodes.
A213441
Number of 2-colored graphs on n labeled nodes.
Terms
- a(0) =0a(1) =4a(2) =24a(3) =160a(4) =1440a(5) =18304a(6) =330624a(7) =8488960a(8) =309465600a(9) =16011372544
External references
- oeis: A213441