Number of tangled bicolored graphs on n labeled vertices.
A221493
Number of tangled bicolored graphs on n labeled vertices.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =12a(5) =120a(6) =2460a(7) =64680a(8) =2323692a(9) =111920760a(10) =7272700860a(11) =639739653960
External references
- oeis: A221493