Triangle T(n,t) read by rows: number of rooted forests with n 2-colored nodes and t rooted trees.

Terms

a(0) =2a(1) =4a(2) =3a(3) =14a(4) =8a(5) =4a(6) =52a(7) =38a(8) =12a(9) =5a(10) =214a(11) =160a(12) =62a(13) =16a(14) =6a(15) =916a(16) =741a(17) =288a(18) =86a(19) =20a(20) =7a(21) =4116a(22) =3416a(23) =1408a(24) =416a(25) =110a(26) =24a(27) =8a(28) =18996a(29) =16270