Number of 2-chromatic (i.e., chromatic number equals 2) simple graphs on n nodes.
A076278
Number of 2-chromatic (i.e., chromatic number equals 2) simple graphs on n nodes.
Terms
- a(0) =0a(1) =1a(2) =2a(3) =6a(4) =12a(5) =34a(6) =87a(7) =302a(8) =1118a(9) =5478a(10) =32302a(11) =251134a(12) =2527711a(13) =33985852a(14) =611846939a(15) =14864650923a(16) =488222721991
External references
- oeis: A076278