Number of n-node (unlabeled) connected graphs with girth 4.
A128241
Number of n-node (unlabeled) connected graphs with girth 4.
Terms
- a(0) =0a(1) =1a(2) =2a(3) =11a(4) =41a(5) =220a(6) =1243a(7) =9368a(8) =89049a(9) =1135894a(10) =19381407a(11) =445505570a(12) =13741579905a(13) =566739127723
External references
- oeis: A128241