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A216530
as a simple table
n
a(n)
1
1
2
7
3
19
4
31
5
49
6
61
7
67
8
109
9
133
10
139
11
157
12
163
13
211
14
217
[1,7,19,31,49,61,67,109,133,139,157,163,211,217]
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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)