Number of simple connected graphs on n nodes that are not trees.
A241841
Number of simple connected graphs on n nodes that are not trees.
Terms
- a(0) =0a(1) =0a(2) =1a(3) =4a(4) =18a(5) =106a(6) =842a(7) =11094a(8) =261033a(9) =11716465a(10) =1006700330a(11) =164059829925
External references
- oeis: A241841