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A089765 as a simple table

n a(n)
1 4
2 8
3 9
4 18
5 21
6 25
7 33
8 49
9 57
10 69
11 81
12 85
13 93
14 121
15 129
16 133
17 145
18 169
19 177
20 205
21 213
22 217
23 237
24 249
25 253
26 265
27 273
28 289
29 309
30 361
31 393
32 417
33 445
34 469
35 489
36 493
37 505
38 517
39 529
40 553
41 565
42 573
43 597
44 633
45 669
46 685
47 697
48 753
49 777
50 781
51 793
52 813
53 817
54 841
55 865

[4,8,9,18,21,25,33,49,57,69,81,85,93,121,129,133,
 145,169,177,205,213,217,237,249,253,265,273,289,
 309,361,393,417,445,469,489,493,505,517,529,553,
 565,573,597,633,669,685,697,753,777,781,793,813,
 817,841,865]

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Last modified August 10 19:25 EDT 2024. Contains 375058 sequences. (Running on oeis4.)