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A320689 as a simple table

na(n)
01
12
22
33
45
57
610
714
819
926
1035
1146
1261
1380
14103
15133
16171
17217
18275
19347
20435
21544
22677
23838
241036
251276
261564
271913
282334
292837
303441
314163
325022
336046
347262
358701
3610407
3712421
3814792
3917586
4020871
4124721
4229234
4334514
4440679
4547874
4656256
4766003

[1,2,2,3,5,7,10,14,19,26,35,46,61,80,103,133,171,
 217,275,347,435,544,677,838,1036,1276,1564,1913,
 2334,2837,3441,4163,5022,6046,7262,8701,10407,
 12421,14792,17586,20871,24721,29234,34514,40679,
 47874,56256,66003]