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A089821 as a simple table

n a(n)
1 0
2 2
3 4
4 8
5 12
6 24
7 32
8 64
9 128
10 256
11 320
12 640
13 768
14 1536
15 3072
16 6144
17 7168
18 14336
19 16384
20 32768
21 65536
22 131072
23 147456
24 294912
25 589824
26 1179648
27 2359296
28 4718592
29 5242880
30 10485760
31 11534336
32 23068672
33 46137344
34 92274688
35 184549376
36 369098752
37 402653184

[0,2,4,8,12,24,32,64,128,256,320,640,768,1536,
 3072,6144,7168,14336,16384,32768,65536,131072,
 147456,294912,589824,1179648,2359296,4718592,
 5242880,10485760,11534336,23068672,46137344,
 92274688,184549376,369098752,402653184]

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Last modified March 29 01:34 EDT 2024. Contains 371264 sequences. (Running on oeis4.)