Open AlexDaniel opened 5 years ago
A000081 / Number of unlabeled rooted trees with n nodes (or connected functions with a fixed point).
The sequence is not implemented yet.
0 1 1 2 4 9 20 48 115 286 719 1842 4766 12486 32973 87811 235381 634847 1721159 4688676 12826228 35221832 97055181 268282855 743724984 2067174645 5759636510 16083734329 45007066269 126186554308 354426847597
A000081 / Number of unlabeled rooted trees with n nodes (or connected functions with a fixed point).
The sequence is not implemented yet.
0 1 1 2 4 9 20 48 115 286 719 1842 4766 12486 32973 87811 235381 634847 1721159 4688676 12826228 35221832 97055181 268282855 743724984 2067174645 5759636510 16083734329 45007066269 126186554308 354426847597