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A020157 as a simple table

n a(n)
1 4
2 14
3 15
4 21
5 28
6 35
7 52
8 91
9 105
10 231
11 268
12 341
13 364
14 469
15 481
16 561
17 651
18 793
19 871
20 1105
21 1729
22 1876
23 1897
24 2105
25 2257
26 2821
27 3484
28 3523
29 4069
30 4371
31 4411
32 5149
33 5185
34 5356
35 5473
36 5565
37 5611
38 6097
39 6601
40 7161
41 7294
42 8321
43 8401
44 8421
45 8841
46 8911
47 11041
48 11581

[4,14,15,21,28,35,52,91,105,231,268,341,364,469,
 481,561,651,793,871,1105,1729,1876,1897,2105,2257,
 2821,3484,3523,4069,4371,4411,5149,5185,5356,5473,
 5565,5611,6097,6601,7161,7294,8321,8401,8421,8841,
 8911,11041,11581]

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Last modified April 23 14:49 EDT 2024. Contains 371914 sequences. (Running on oeis4.)