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A018723
as a simple table
n
a(n)
1
1
2
2
3
3
4
4
5
6
6
7
7
11
8
12
9
14
10
21
11
22
12
28
13
33
14
42
15
44
16
66
17
77
18
84
19
132
20
154
21
231
22
308
23
462
24
924
[1,2,3,4,6,7,11,12,14,21,22,28,33,42,44,66,77,84, 132,154,231,308,462,924]