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A051039 as a simple table

na(n)
11
22
34
48
516
631
746
861
976
1091
11106
12121
13136
14151
15166
16181
17196
18211
19226
20241
21256
22271
23286
24301
25316
26331
27346
28361
29376
30391
31406
32421
33436
34451
35466
36481
37496
38511
39526
40541
41556
42571
43586
44601
45616
46631
47646
48661
49676
50691
51706
52721
53736
54751

[1,2,4,8,16,31,46,61,76,91,106,121,136,151,166,
 181,196,211,226,241,256,271,286,301,316,331,346,
 361,376,391,406,421,436,451,466,481,496,511,526,
 541,556,571,586,601,616,631,646,661,676,691,706,
 721,736,751]