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A128348
as a simple table
n
a(n)
1
2
2
3
3
31
4
41
5
53
6
101
7
421
8
1259
9
4721
10
45259
[2,3,31,41,53,101,421,1259,4721,45259]
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Last modified April 18 11:28 EDT 2024. Contains 371779 sequences. (Running on oeis4.)