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A005425 as a simple table

n a(n)
0 1
1 2
2 5
3 14
4 43
5 142
6 499
7 1850
8 7193
9 29186
10 123109
11 538078
12 2430355
13 11317646
14 54229907
15 266906858
16 1347262321
17 6965034370
18 36833528197
19 199037675054
20 1097912385851
21 6176578272782
22 35409316648435
23 206703355298074
24 1227820993510153
25 7416522514174082

[1,2,5,14,43,142,499,1850,7193,29186,123109,
 538078,2430355,11317646,54229907,266906858,
 1347262321,6965034370,36833528197,199037675054,
 1097912385851,6176578272782,35409316648435,
 206703355298074,1227820993510153,7416522514174082]

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Last modified April 15 02:27 EDT 2021. Contains 342974 sequences. (Running on oeis4.)