Number of unlabeled identity interval graphs with n nodes.

A005216

Number of unlabeled identity interval graphs with n nodes.

Terms

    a(0) =1a(1) =0a(2) =0a(3) =0a(4) =0a(5) =4a(6) =31a(7) =199a(8) =1313a(9) =9158a(10) =68336a(11) =546697a(12) =4682870a(13) =42818887a(14) =416581477a(15) =4298371842a(16) =46896673051a(17) =539527125454

External references