Number of rooted identity trees with n nodes (rooted trees whose automorphism group is the identity group).
0, 1, 1, 1, 2, 3, 6, 12, 25, 52, 113, 247, 548, 1226, 2770, 6299, 14426, 33209, 76851
3 seqfan posts
Sat Oct 29 15:21:33 CEST 2011 [seqfan] Re: Set of sets using minimal number of braces
Sat Oct 29 09:05:57 CEST 2011 [seqfan] Re: Set of sets using minimal number of braces
Tue Oct 25 09:08:36 CEST 2011 [seqfan] Re: Set of sets using minimal number of braces
Index of A-numbers in seqfan: by ascending order
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