Number of unlabeled and connected graphs on n vertices which are HH-free ("house-hole-free").

A079453

Number of unlabeled and connected graphs on n vertices which are HH-free ("house-hole-free").

Terms

    a(0) =1a(1) =1a(2) =2a(3) =6a(4) =19a(5) =87a(6) =454a(7) =3006a(8) =23509a(9) =220102a(10) =2450511a(11) =32773345a(12) =532120179

External references