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A128283 as a simple table

n a(n)
1 21
2 33
3 57
4 85
5 93
6 133
7 145
8 177
9 205
10 213
11 217
12 253
13 393
14 445
15 553
16 565
17 633
18 697
19 793
20 817
21 865
22 913
23 933
24 973
25 1137
26 1285
27 1345
28 1417
29 1437
30 1465
31 1477
32 1513
33 1537
34 1717
35 1765
36 1837
37 1857
38 1893
39 2101
40 2173
41 2245
42 2305
43 2517
44 2577
45 2581
46 2605
47 2641
48 2653
49 2733
50 2761

[21,33,57,85,93,133,145,177,205,213,217,253,393,
 445,553,565,633,697,793,817,865,913,933,973,1137,
 1285,1345,1417,1437,1465,1477,1513,1537,1717,1765,
 1837,1857,1893,2101,2173,2245,2305,2517,2577,2581,
 2605,2641,2653,2733,2761]

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Last modified April 14 16:38 EDT 2021. Contains 342949 sequences. (Running on oeis4.)