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A057878 as a simple table

n a(n)
1 23
2 37
3 53
4 73
5 113
6 131
7 151
8 211
9 311
10 11111111111111111131
11 11111111111111117111
12 11111111111131111111
13 11111111131111111111
14 111111111111111111111113
15 111111111111111112111111
16 111111111111111121111111
17 111111111112111111111111
18 111111115111111111111111 

[23,37,53,73,113,131,151,211,311,
 11111111111111111131,11111111111111117111,
 11111111111131111111,11111111131111111111,
 111111111111111111111113,111111111111111112111111,
 111111111111111121111111,111111111112111111111111,
 111111115111111111111111]

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Last modified April 18 18:58 EDT 2024. Contains 371781 sequences. (Running on oeis4.)