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A131128 as a simple table

n a(n)
0 1
1 2
2 8
3 20
4 44
5 92
6 188
7 380
8 764
9 1532
10 3068
11 6140
12 12284
13 24572
14 49148
15 98300
16 196604
17 393212
18 786428
19 1572860
20 3145724
21 6291452
22 12582908
23 25165820
24 50331644
25 100663292
26 201326588
27 402653180
28 805306364
29 1610612732
30 3221225468

[1,2,8,20,44,92,188,380,764,1532,3068,6140,12284,
 24572,49148,98300,196604,393212,786428,1572860,
 3145724,6291452,12582908,25165820,50331644,
 100663292,201326588,402653180,805306364,
 1610612732,3221225468]

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Last modified May 18 12:18 EDT 2024. Contains 372630 sequences. (Running on oeis4.)