Irregular triangle read by rows where T(n,k) is the number of labeled loop-graphs covering n vertices with k edges.

A369199

Irregular triangle read by rows where T(n,k) is the number of labeled loop-graphs covering n vertices with k edges.

Terms

    a(0) =1a(1) =0a(2) =1a(3) =0a(4) =1a(5) =3a(6) =1a(7) =0a(8) =0a(9) =6a(10) =17a(11) =15a(12) =6a(13) =1a(14) =0a(15) =0a(16) =3a(17) =46a(18) =150a(19) =228a(20) =206a(21) =120a(22) =45a(23) =10a(24) =1a(25) =0a(26) =0a(27) =0a(28) =45a(29) =465

External references