Triangle read by rows: Number of unlabeled cubic graphs with 2n nodes and k components.

Terms

a(0) =0a(1) =1a(2) =0a(3) =2a(4) =0a(5) =0a(6) =5a(7) =1a(8) =0a(9) =0a(10) =19a(11) =2a(12) =0a(13) =0a(14) =0a(15) =85a(16) =8a(17) =1a(18) =0a(19) =0a(20) =0a(21) =509a(22) =29a(23) =2a(24) =0a(25) =0a(26) =0a(27) =0a(28) =4060a(29) =138