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A103179 as a simple table

n a(n)
0 2
1 2
2 6
3 20
4 38
5 78
6 160
7 316
8 644
9 1296
10 2578
11 5186
12 10368
13 20744
14 41532
15 83076
16 166172
17 332364
18 664864
19 1329768
20 2659656
21 5319504 

[2,2,6,20,38,78,160,316,644,1296,2578,5186,10368,
 20744,41532,83076,166172,332364,664864,1329768,
 2659656,5319504]

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Last modified May 8 11:33 EDT 2024. Contains 372332 sequences. (Running on oeis4.)