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A172990 as a simple table

na(n)
23
34
43
512
617
76
89
910
109
1130
125
1354
1433
1514
163
1724
1811
19168
2081
2120
229
2360
2417
2518
263
2780
289
2918
3073
31192
3275
3314
3463
3554
367
3754
38255
3938
40303
4142
4211
43114
4463
454
4633
47180
485
4930
5093
5128
5221
5384
54115
5518
5615
5740
589
59228
6061
61318
62171
634
6493
6542
665
6724
689
6970
7051
7172
7249
73444
743

[3,4,3,12,17,6,9,10,9,30,5,54,33,14,3,24,11,168,
 81,20,9,60,17,18,3,80,9,18,73,192,75,14,63,54,7,
 54,255,38,303,42,11,114,63,4,33,180,5,30,93,28,21,
 84,115,18,15,40,9,228,61,318,171,4,93,42,5,24,9,
 70,51,72,49,444,3]