Number of connected triangle-free graphs on n unlabeled nodes.
A024607
Number of connected triangle-free graphs on n unlabeled nodes.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =3a(4) =6a(5) =19a(6) =59a(7) =267a(8) =1380a(9) =9832a(10) =90842a(11) =1144061a(12) =19425052a(13) =445781050a(14) =13743625184a(15) =566756900370
External references
- oeis: A024607