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A049188 as a simple table

n a(n)
1 1
2 1
3 3
4 9
5 31
6 113
7 429
8 1679
9 6719
10 27367
11 113053
12 472471
13 1993785
14 8483023
15 36348595
16 156705421
17 679218965
18 2957961685
19 12936141935
20 56787742645
21 250137441355
22 1105189823717
23 4896749876081
24 21751355833739

[1,1,3,9,31,113,429,1679,6719,27367,113053,472471,
 1993785,8483023,36348595,156705421,679218965,
 2957961685,12936141935,56787742645,250137441355,
 1105189823717,4896749876081,21751355833739]

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Last modified September 21 05:55 EDT 2020. Contains 337267 sequences. (Running on oeis4.)