Triangle T(n,k) read by rows: number of n-node simple graphs with rectilinear crossing number k (k=0..A014540(n)).

A298445

Triangle T(n,k) read by rows: number of n-node simple graphs with rectilinear crossing number k (k=0..A014540(n)).

Terms

    a(0) =1a(1) =2a(2) =4a(3) =11a(4) =33a(5) =1a(6) =142a(7) =12a(8) =1a(9) =1a(10) =822a(11) =162a(12) =39a(13) =16a(14) =1a(15) =2a(16) =1a(17) =0a(18) =0a(19) =1a(20) =6966a(21) =3183a(22) =1291a(23) =559a(24) =172a(25) =82a(26) =48a(27) =12a(28) =15a(29) =8

External references