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A289898 as a simple table

na(n)
12
22
32
411
53
612
73
812
959
103
1151
1215
133
1412
1559
1662
173
1851
1915
203
2150
2215
2360
24251
2515
263
2712
283
2912
3015179
3115
3260
333
34816
353
3651
3762
3815
3960
4062
413
42816
433
4412
453
463226
474094
4815
493
5012
5159
523
53816
5463
5563
5663
573
5851
5915
603
61808
6216363
6315
643
6512
6615183

[2,2,2,11,3,12,3,12,59,3,51,15,3,12,59,62,3,51,15,
 3,50,15,60,251,15,3,12,3,12,15179,15,60,3,816,3,
 51,62,15,60,62,3,816,3,12,3,3226,4094,15,3,12,59,
 3,816,63,63,63,3,51,15,3,808,16363,15,3,12,15183]