Number of tangled bicolored graphs on n unlabeled vertices.

A221492

Number of tangled bicolored graphs on n unlabeled vertices.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =1a(5) =2a(6) =10a(7) =34a(8) =158a(9) =804a(10) =4876a(11) =35516a(12) =319719a(13) =3636064a(14) =53349918a(15) =1025758444a(16) =26132964903a(17) =888605372756

External references