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A167394 as a simple table

n a(n)
1 2
2 2
3 2
4 2
5 23
6 37
7 53
8 67
9 97
10 97
11 131
12 131
13 173
14 173
15 173
16 223
17 233
18 263
19 277
20 307
21 337
22 409
23 409
24 457
25 509
26 563
27 593
28 613
29 631
30 653
31 797
32 797
33 797
34 853
35 877
36 1013
37 1013
38 1039
39 1039
40 1087
41 1129
42 1223
43 1259
44 1283
45 1297
46 1307
47 1423
48 1447
49 1471
50 1471
51 1601
52 1613

[2,2,2,2,23,37,53,67,97,97,131,131,173,173,173,
 223,233,263,277,307,337,409,409,457,509,563,593,
 613,631,653,797,797,797,853,877,1013,1013,1039,
 1039,1087,1129,1223,1259,1283,1297,1307,1423,1447,
 1471,1471,1601,1613]

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Last modified April 23 16:40 EDT 2024. Contains 371916 sequences. (Running on oeis4.)