Number of unlabeled connected simple graphs with n nodes of degree 4 or less, except trees and 4-regular graphs.
A289159
Number of unlabeled connected simple graphs with n nodes of degree 4 or less, except trees and 4-regular graphs.
Terms
- a(0) =0a(1) =0a(2) =1a(3) =4a(4) =17a(5) =72a(6) =342a(7) =1905a(8) =12156a(9) =89268a(10) =738911a(11) =6798758a(12) =68520038a(13) =748502910a(14) =8788173335a(15) =110193643134
External references
- oeis: A289159