Triangle of the numbers of different forests with m rooted trees having distinct orders.

Terms

a(0) =1a(1) =1a(2) =0a(3) =2a(4) =1a(5) =0a(6) =4a(7) =2a(8) =0a(9) =0a(10) =9a(11) =6a(12) =0a(13) =0a(14) =0a(15) =20a(16) =13a(17) =2a(18) =0a(19) =0a(20) =0a(21) =48a(22) =37a(23) =4a(24) =0a(25) =0a(26) =0a(27) =0a(28) =115a(29) =86