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A037689 as a simple table

n a(n)
1 1
2 7
3 35
4 178
5 891
6 4457
7 22285
8 111428
9 557141
10 2785707
11 13928535
12 69642678
13 348213391
14 1741066957
15 8705334785
16 43526673928
17 217633369641
18 1088166848207
19 5440834241035
20 27204171205178
21 136020856025891
22 680104280129457

[1,7,35,178,891,4457,22285,111428,557141,2785707,
 13928535,69642678,348213391,1741066957,8705334785,
 43526673928,217633369641,1088166848207,
 5440834241035,27204171205178,136020856025891,
 680104280129457]

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Last modified September 17 12:40 EDT 2021. Contains 347477 sequences. (Running on oeis4.)