Number of "squashed-tree" graphs with n central nodes, the labeled case, allowing the direct link between L and R.
A138562
Number of "squashed-tree" graphs with n central nodes, the labeled case, allowing the direct link between L and R.
Terms
- a(0) =1a(1) =4a(2) =38a(3) =616a(4) =14744a(5) =479364a(6) =20021768a(7) =1031673164a(8) =63597989864
External references
- oeis: A138562