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A135367
as a simple table
n
a(n)
1
1
2
2
3
4
4
5
5
7
6
8
7
15
8
23
9
31
10
87
11
111
12
119
13
167
14
335
15
1391
16
1455
17
1607
18
1679
19
1991
20
25887
21
26375
[1,2,4,5,7,8,15,23,31,87,111,119,167,335,1391, 1455,1607,1679,1991,25887,26375]
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Last modified April 25 13:12 EDT 2024. Contains 371969 sequences. (Running on oeis4.)