a(n) is the number of labeled connected planar graphs with n edges.

A291842

a(n) is the number of labeled connected planar graphs with n edges.

Terms

    a(0) =1a(1) =3a(2) =17a(3) =140a(4) =1524a(5) =20673a(6) =336259a(7) =6382302a(8) =138525770a(9) =3384987698a(10) =91976075664

External references