Number of 2-connected outerplanar graphs on n labeled nodes.

A097999

Number of 2-connected outerplanar graphs on n labeled nodes.

Terms

    a(0) =1a(1) =9a(2) =132a(3) =2700a(4) =70920a(5) =2275560a(6) =86264640a(7) =3772681920a(8) =186972105600

External references