Number of connected triangle-free graphs on n nodes with chromatic number 3.
A116079
Number of connected triangle-free graphs on n nodes with chromatic number 3.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =1a(5) =2a(6) =15a(7) =85a(8) =650a(9) =5800a(10) =65243a(11) =931258a(12) =17182237a(13) =414512599a(14) =13161989059
External references
- oeis: A116079