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A006841 as a simple table

n a(n)
1 1
2 1
3 1
4 2
5 4
6 10
7 28
8 127
9 686
10 4975
11 42529
12 420948
13 4622509
14 55670332
15 726738971
16 10217376792
17 153848448652
18 2470073249960
19 42120966152815
20 760282326662191
21 14481561464994821
22 290289454462745374
23 6108699653117045614

[1,1,1,2,4,10,28,127,686,4975,42529,420948,
 4622509,55670332,726738971,10217376792,
 153848448652,2470073249960,42120966152815,
 760282326662191,14481561464994821,
 290289454462745374,6108699653117045614]

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Last modified May 14 00:47 EDT 2024. Contains 372528 sequences. (Running on oeis4.)