Number of 4-regular (quartic) connected graphs on n nodes with diameter k written as irregular triangle T(n,k).

A296620

Number of 4-regular (quartic) connected graphs on n nodes with diameter k written as irregular triangle T(n,k).

Terms

    a(0) =1a(1) =0a(2) =1a(3) =0a(4) =2a(5) =0a(6) =6a(7) =0a(8) =16a(9) =0a(10) =24a(11) =35a(12) =0a(13) =37a(14) =227a(15) =1a(16) =0a(17) =26a(18) =1502a(19) =16a(20) =0a(21) =10a(22) =10561a(23) =202a(24) =5a(25) =0a(26) =1a(27) =84103a(28) =4006a(29) =58

External references