Triangle T(n,k) read by rows: number of LCO forests of size n with k leaves, 1 <= k <= n.

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =2a(5) =1a(6) =4a(7) =6a(8) =3a(9) =1a(10) =8a(11) =17a(12) =12a(13) =4a(14) =1a(15) =16a(16) =46a(17) =44a(18) =20a(19) =5a(20) =1a(21) =32a(22) =120a(23) =150a(24) =90a(25) =30a(26) =6a(27) =1a(28) =64a(29) =304