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A198708 as a simple table

na(n)
10
21
31
41
53
61
72
814
914
102
113
1276
13185
1476
153
166
17488
183893
193893
20488
216
2211
233508
2495209
25322230
2695209
273508
2811
2923
3027422
312654693
3230407251
3330407251
342654693
3527422
3623
3747
38227045
3977622801
403075124662
4110239497407
423075124662
4377622801
44227045

[0,1,1,1,3,1,2,14,14,2,3,76,185,76,3,6,488,3893,
 3893,488,6,11,3508,95209,322230,95209,3508,11,23,
 27422,2654693,30407251,30407251,2654693,27422,23,
 47,227045,77622801,3075124662,10239497407,
 3075124662,77622801,227045]