Number of simple graphs on n nodes with crossing number 1.
A307071
Number of simple graphs on n nodes with crossing number 1.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =1a(5) =12a(6) =162a(7) =3183a(8) =74696a(9) =1892122
External references
- oeis: A307071