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A007230
as a simple table
n
a(n)
1
0
2
1
3
2
4
7
5
12
6
30
7
54
8
127
9
226
10
508
11
930
12
2046
13
3780
14
8182
15
15288
16
32767
17
61680
18
131042
19
248346
20
524284
[0,1,2,7,12,30,54,127,226,508,930,2046,3780,8182, 15288,32767,61680,131042,248346,524284]
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Last modified September 3 17:55 EDT 2024. Contains 375674 sequences. (Running on oeis4.)