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A229006 as a simple table

n a(n)
1 3
2 7
3 15
4 31
5 57
6 105
7 193
8 353
9 653
10 1209
11 2241
12 4161
13 7719
14 14325
15 26581
16 49311
17 91489
18 169729
19 314881
20 584177
21 1083761
22 2010609
23 3730105
24 6920121
25 12838307
26 23817773
27 44187025
28 81976335
29 152083481
30 282147169
31 523442893
32 971097649

[3,7,15,31,57,105,193,353,653,1209,2241,4161,7719,
 14325,26581,49311,91489,169729,314881,584177,
 1083761,2010609,3730105,6920121,12838307,23817773,
 44187025,81976335,152083481,282147169,523442893,
 971097649]

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Last modified September 29 05:01 EDT 2020. Contains 337420 sequences. (Running on oeis4.)