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A137653
as a simple table
n
a(n)
1
1
2
2
3
4
4
5
5
6
6
20
7
21
8
22
9
28
10
58
11
120
12
144
13
1100
14
1926
15
2892
16
4773
17
5214
18
17241
19
18980
[1,2,4,5,6,20,21,22,28,58,120,144,1100,1926,2892, 4773,5214,17241,18980]
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Last modified May 1 23:54 EDT 2024. Contains 372178 sequences. (Running on oeis4.)
