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A212293 as a simple table

na(n)
10
20
33
47
512
619
726
834
943
1053
1163
1274
1385
1497
15110
16122
17136
18150
19164
20179
21194
22210
23226
24242
25259
26275
27293
28310
29328
30347
31365
32384
33403
34422
35442
36462
37482
38502
39523
40544
41565
42586
43608
44630
45652
46674
47696
48719
49742
50765
51788
52811
53835
54859
55883
56907
57931
58956

[0,0,3,7,12,19,26,34,43,53,63,74,85,97,110,122,
 136,150,164,179,194,210,226,242,259,275,293,310,
 328,347,365,384,403,422,442,462,482,502,523,544,
 565,586,608,630,652,674,696,719,742,765,788,811,
 835,859,883,907,931,956]