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A155888 as a simple table

n a(n)
0 1
1 1
2 2
3 5
4 14
5 43
6 143
7 506
8 1870
9 7107
10 27474
11 107274
12 421268
13 1659725
14 6551041
15 25884007
16 102330007
17 404682554
18 1600678795
19 6331951858
20 25049290301
21 99098453901
22 392054049162
23 1551062360070
24 6136418173129
25 24277388110318

[1,1,2,5,14,43,143,506,1870,7107,27474,107274,
 421268,1659725,6551041,25884007,102330007,
 404682554,1600678795,6331951858,25049290301,
 99098453901,392054049162,1551062360070,
 6136418173129,24277388110318]

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Last modified May 9 09:57 EDT 2021. Contains 343710 sequences. (Running on oeis4.)