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A209629 as a simple table

n a(n)
1 2
2 6
3 16
4 44
5 134
6 468
7 1880
8 8534
9 42804
10 232972
11 1359186
12 8431288
13 55297064
14 381815026
15 2765949856
16 20960349828
17 165729870678
18 1364153874460
19 11665484934400
20 103448317519318
21 949739634410652
22 9013431481088948
23 88304011718557298
24 891917738606387792

[2,6,16,44,134,468,1880,8534,42804,232972,1359186,
 8431288,55297064,381815026,2765949856,20960349828,
 165729870678,1364153874460,11665484934400,
 103448317519318,949739634410652,9013431481088948,
 88304011718557298,891917738606387792]

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Last modified February 25 07:29 EST 2021. Contains 341596 sequences. (Running on oeis4.)