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A055228 as a simple table

n a(n)
0 1
1 1
2 2
3 3
4 5
5 11
6 27
7 71
8 201
9 603
10 1905
11 6318
12 21887
13 78912
14 295260
15 1143536
16 4574144
17 18859678
18 80014835
19 348776577
20 1559776269
21 7147792819
22 33526120083
23 160785623546
24 787685471323
25 3938427356615
26 20082117944246
27 104349745809074
28 552166953567229

[1,1,2,3,5,11,27,71,201,603,1905,6318,21887,78912,
 295260,1143536,4574144,18859678,80014835,
 348776577,1559776269,7147792819,33526120083,
 160785623546,787685471323,3938427356615,
 20082117944246,104349745809074,552166953567229]

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Last modified April 23 18:16 EDT 2024. Contains 371916 sequences. (Running on oeis4.)