Number of unlabeled connected interval graphs with n nodes.

A005976

Number of unlabeled connected interval graphs with n nodes.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =5a(4) =15a(5) =56a(6) =250a(7) =1328a(8) =8069a(9) =54962a(10) =410330a(11) =3317302a(12) =28774874a(13) =266242936a(14) =2616100423a(15) =27205605275a(16) =298569256590

External references