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A118568 as a simple table

n a(n)
1 21
2 25
3 43
4 49
5 63
6 67
7 69
8 87
9 201
10 205
11 223
12 241
13 261
14 267
15 283
16 285
17 289
18 409
19 421
20 427
21 429
22 463
23 483
24 487
25 489
26 601
27 621
28 643
29 645
30 685
31 801
32 805
33 823
34 841
35 867
36 883
37 885
38 2001
39 2023
40 2065
41 2067
42 2083
43 2085
44 2209
45 2221
46 2281
47 2283
48 2403
49 2407
50 2409
51 2427
52 2445
53 2461
54 2467

[21,25,43,49,63,67,69,87,201,205,223,241,261,267,
 283,285,289,409,421,427,429,463,483,487,489,601,
 621,643,645,685,801,805,823,841,867,883,885,2001,
 2023,2065,2067,2083,2085,2209,2221,2281,2283,2403,
 2407,2409,2427,2445,2461,2467]

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Last modified April 16 08:27 EDT 2024. Contains 371698 sequences. (Running on oeis4.)