Number of 2-connected (or biconnected) graphs on n nodes with chromatic number 2.
A126750
Number of 2-connected (or biconnected) graphs on n nodes with chromatic number 2.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =1a(4) =1a(5) =5a(6) =8a(7) =42a(8) =146a(9) =956a(10) =6643a(11) =65921a(12) =818448a(13) =13442572a(14) =287665498a(15) =8099980771a(16) =300760170216
External references
- oeis: A126750