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A228917 as a simple table

n a(n)
1 1
2 1
3 1
4 2
5 2
6 2
7 5
8 2
9 12
10 39
11 98
12 526
13 2117
14 6663
15 15043
16 68403
17 791581
18 4826577
19 19592777
20 102551299
21 739788968
22 4449585790
23 36547266589
24 324446266072
25 2743681178070

[1,1,1,2,2,2,5,2,12,39,98,526,2117,6663,15043,
 68403,791581,4826577,19592777,102551299,739788968,
 4449585790,36547266589,324446266072,2743681178070]

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Last modified June 25 09:48 EDT 2019. Contains 324347 sequences. (Running on oeis4.)