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A177988 as a simple table

n a(n)
1 1
2 7
3 12
4 15
5 16
6 17
7 31
8 32
9 45
10 49
11 56
12 60
13 65
14 71
15 72
16 77
17 80
18 81 

[1,7,12,15,16,17,31,32,45,49,56,60,65,71,72,77,80,
 81]

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Last modified April 23 11:35 EDT 2024. Contains 371912 sequences. (Running on oeis4.)