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A332707
as a simple table
n
a(n)
1
3
2
4
3
8
4
20
5
40
6
230
7
260
8
680
9
1910
10
2120
11
6670
12
9710
13
10310
14
23500
15
25220
16
37990
17
71800
[3,4,8,20,40,230,260,680,1910,2120,6670,9710, 10310,23500,25220,37990,71800]
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Last modified August 29 15:03 EDT 2024. Contains 375517 sequences. (Running on oeis4.)