Number of isomorphism classes of connected 4-regular multigraphs of order n, loops allowed.
A085549
Number of isomorphism classes of connected 4-regular multigraphs of order n, loops allowed.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =10a(4) =28a(5) =97a(6) =359a(7) =1635a(8) =8296a(9) =48432a(10) =316520a(11) =2305104a(12) =18428254a(13) =160384348a(14) =1506613063a(15) =15180782537a(16) =163211097958
External references
- oeis: A085549