Number of stable forests with n nodes.

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =5a(5) =8a(6) =15a(7) =27a(8) =54a(9) =110a(10) =238a(11) =526a(12) =1211a(13) =2839a(14) =6825a(15) =16655a(16) =41315a(17) =103663a(18) =263086a(19) =673604a(20) =1739155a(21) =4521632a(22) =11831735a(23) =31134338a(24) =82352098a(25) =218837877a(26) =584018065a(27) =1564679863a(28) =4207224730a(29) =11350583175