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A129955 as a simple table

n a(n)
0 2
1 3
2 8
3 18
4 40
5 88
6 192
7 416
8 896
9 1920
10 4096
11 8704
12 18432
13 38912
14 81920
15 172032
16 360448
17 753664
18 1572864
19 3276800
20 6815744
21 14155776
22 29360128
23 60817408
24 125829120
25 260046848
26 536870912
27 1107296256
28 2281701376
29 4697620480

[2,3,8,18,40,88,192,416,896,1920,4096,8704,18432,
 38912,81920,172032,360448,753664,1572864,3276800,
 6815744,14155776,29360128,60817408,125829120,
 260046848,536870912,1107296256,2281701376,
 4697620480]

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Last modified July 13 17:54 EDT 2020. Contains 335689 sequences. (Running on oeis4.)