Number of simple graphs on n unlabeled nodes.
A000088
Number of simple graphs on n unlabeled nodes.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =4a(4) =11a(5) =34a(6) =156a(7) =1044a(8) =12346a(9) =274668a(10) =12005168a(11) =1018997864a(12) =165091172592
External references
- oeis: A000088