Number of alternating link diagrams with n crossings, 3 connected components and two external legs.
A067768
Number of alternating link diagrams with n crossings, 3 connected components and two external legs.
Terms
- a(0) =22a(1) =728a(2) =14884a(3) =244908a(4) =3575045a(5) =48517524a(6) =628013796a(7) =7871666088a(8) =96451145091
External references
- oeis: A067768