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A173588 as a simple table

na(n)
01
12
21
33
45
51
64
721
810
91
105
1185
1291
1317
141
156
16341
17820
18273
1926
201
217
221365
237381
244369
25651
2637
271
288
295461
3066430
3169905
3216276
331333
3450
351
369
3721845
38597871
391118481
40406901
4147989
422451
4365
441
4510
4687381
475380840
4817895697
4910172526
501727605
51120100
524161
5382
541

[1,2,1,3,5,1,4,21,10,1,5,85,91,17,1,6,341,820,273,
 26,1,7,1365,7381,4369,651,37,1,8,5461,66430,69905,
 16276,1333,50,1,9,21845,597871,1118481,406901,
 47989,2451,65,1,10,87381,5380840,17895697,
 10172526,1727605,120100,4161,82,1]