Number of n-node (unlabeled) connected graphs with girth 6.
A128243
Number of n-node (unlabeled) connected graphs with girth 6.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =1a(4) =1a(5) =6a(6) =17a(7) =69a(8) =239a(9) =962a(10) =3864a(11) =17049a(12) =79607a(13) =403758a(14) =2209386a(15) =13138818a(16) =84841130a(17) =595825731
External references
- oeis: A128243