Triangle read by rows: T(n,k) (n >= 1, 1 <= k <= n) = number of normalized 2n-plets associated to trees with k edges.
A294439
Triangle read by rows: T(n,k) (n >= 1, 1 <= k <= n) = number of normalized 2n-plets associated to trees with k edges.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =1a(4) =6a(5) =5a(6) =1a(7) =14a(8) =28a(9) =14a(10) =1a(11) =30a(12) =110a(13) =120a(14) =42a(15) =1a(16) =62a(17) =375a(18) =682a(19) =495a(20) =132a(21) =1a(22) =126a(23) =1190a(24) =3248a(25) =3731a(26) =2002a(27) =429a(28) =1a(29) =254
External references
- oeis: A294439