Triangle read by rows where T(n,k) is the number of labeled simple graphs covering n vertices with exactly k endpoints (vertices of degree 1).
A327377
Triangle read by rows where T(n,k) is the number of labeled simple graphs covering n vertices with exactly k endpoints (vertices of degree 1).
Terms
- a(0) =1a(1) =0a(2) =0a(3) =0a(4) =0a(5) =1a(6) =1a(7) =0a(8) =3a(9) =0a(10) =10a(11) =12a(12) =12a(13) =4a(14) =3a(15) =253a(16) =260a(17) =160a(18) =60a(19) =35a(20) =0a(21) =12068a(22) =9150a(23) =4230a(24) =1440a(25) =480a(26) =66a(27) =15a(28) =1052793a(29) =570906
External references
- oeis: A327377