A300749 Number of connected squarefree bipartite graphs on n vertices.
1, 1, 1, 2, 3, 7, 12, 30, 64, 177, 457, 1403, 4327, 15024, 54730, 219311, 942908, 4426513, 22525015, 124896794, 752933593, 4938212176, 35190683416, 272266028155, 2284292635109
Offset: 1
Links
- CombOS - Combinatorial Object Server, Generate graphs
- Brendan McKay, Inverse Euler transforms needed, message on the SeqFan list, Mar 12 2018.
Crossrefs
Cf. A138347.
Formula
Inverse Euler transform of A138347.