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A181375 as a simple table

n a(n)
1 2
2 9
3 41
4 202
5 938
6 4354
7 20330
8 94625
9 439959
10 2045048
11 9500746
12 44124084
13 204883131
14 951202028
15 4415710979
16 20497646229
17 95146359635

[2,9,41,202,938,4354,20330,94625,439959,2045048,
 9500746,44124084,204883131,951202028,4415710979,
 20497646229,95146359635]

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Last modified May 19 17:22 EDT 2019. Contains 323395 sequences. (Running on oeis4.)