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A020138 as a simple table

n a(n)
1 4
2 8
3 28
4 52
5 91
6 121
7 205
8 286
9 364
10 511
11 532
12 616
13 671
14 697
15 703
16 946
17 949
18 1036
19 1105
20 1288
21 1387
22 1541
23 1729
24 1891
25 2465
26 2501
27 2665
28 2701
29 2806
30 2821
31 2926
32 3052
33 3281
34 3367
35 3751
36 4376
37 4636
38 4961
39 5356
40 5551
41 6364
42 6601
43 6643
44 7081
45 7381
46 7913
47 8401

[4,8,28,52,91,121,205,286,364,511,532,616,671,697,
 703,946,949,1036,1105,1288,1387,1541,1729,1891,
 2465,2501,2665,2701,2806,2821,2926,3052,3281,3367,
 3751,4376,4636,4961,5356,5551,6364,6601,6643,7081,
 7381,7913,8401]

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Last modified April 25 12:33 EDT 2024. Contains 371969 sequences. (Running on oeis4.)