Number of, not necessarily connected, 3-regular simple graphs on 2n vertices with girth exactly 4.
A185134
Number of, not necessarily connected, 3-regular simple graphs on 2n vertices with girth exactly 4.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =1a(4) =2a(5) =5a(6) =21a(7) =103a(8) =752a(9) =7385a(10) =91939a(11) =1345933a(12) =22170664a(13) =401399440a(14) =7887389438a(15) =166897766824
External references
- oeis: A185134