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A005126 as a simple table

n a(n)
0 2
1 4
2 7
3 12
4 21
5 38
6 71
7 136
8 265
9 522
10 1035
11 2060
12 4109
13 8206
14 16399
15 32784
16 65553
17 131090
18 262163
19 524308
20 1048597
21 2097174
22 4194327
23 8388632
24 16777241
25 33554458
26 67108891
27 134217756
28 268435485
29 536870942
30 1073741855
31 2147483680
32 4294967329
33 8589934626

[2,4,7,12,21,38,71,136,265,522,1035,2060,4109,
 8206,16399,32784,65553,131090,262163,524308,
 1048597,2097174,4194327,8388632,16777241,33554458,
 67108891,134217756,268435485,536870942,1073741855,
 2147483680,4294967329,8589934626]

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Last modified March 28 11:59 EDT 2024. Contains 371254 sequences. (Running on oeis4.)