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A147188 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 1
6 3
7 7
8 15
9 41
10 163
11 697
12 3471
13 20005
14 143359
15 1211791
16 12104355
17 142437683
18 2011344929
19 33622364965
20 665157511111

[1,1,1,1,1,3,7,15,41,163,697,3471,20005,143359,
 1211791,12104355,142437683,2011344929,33622364965,
 665157511111]

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Last modified May 21 09:30 EDT 2022. Contains 353908 sequences. (Running on oeis4.)