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A053354 as a simple table

n a(n)
1 7
2 15
3 21
4 25
5 27
6 69
7 71
8 105
9 207
10 285
11 611
12 635
13 647
14 969
15 1127
16 1159
17 2407
18 2529
19 3517
20 3577
21 6275
22 6729
23 7919
24 8809
25 9375
26 27369
27 31657
28 44149
29 58579
30 59355
31 274255
32 285435
33 350949
34 485505
35 821221
36 834297

[7,15,21,25,27,69,71,105,207,285,611,635,647,969,
 1127,1159,2407,2529,3517,3577,6275,6729,7919,8809,
 9375,27369,31657,44149,58579,59355,274255,285435,
 350949,485505,821221,834297]

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Last modified July 22 20:14 EDT 2024. Contains 374540 sequences. (Running on oeis4.)