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A317094 as a simple table

n a(n)
0 2
1 6
2 16
3 50
4 234
5 1582
6 13376
7 130986
8 1441810
9 17572214
10 234662352
11 3405357826
12 53334454586
13 896324308830
14 16083557845504
15 306827170866362
16 6199668952527906
17 132240988644216166
18 2968971263911289360
19 69974827707903049554
20 1727194482044146637962
21 44552237162692939114766

[2,6,16,50,234,1582,13376,130986,1441810,17572214,
 234662352,3405357826,53334454586,896324308830,
 16083557845504,306827170866362,6199668952527906,
 132240988644216166,2968971263911289360,
 69974827707903049554,1727194482044146637962,
 44552237162692939114766]

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Last modified June 22 21:29 EDT 2021. Contains 345393 sequences. (Running on oeis4.)