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A171651 as a simple table

na(n)
01
12
21
35
44
51
613
715
86
91
1035
1152
1230
138
141
1596
16175
17130
1850
1910
201
21267
22576
23525
24260
2575
2612
271
28750
291869
302016
311225
32455
33105
3414
351
362123
376000
387476
395376
402450
41728
42140
4316
441
456046
4619107
4727000
4822428
4912096
504410
511092
52180
5318
541

[1,2,1,5,4,1,13,15,6,1,35,52,30,8,1,96,175,130,50,
 10,1,267,576,525,260,75,12,1,750,1869,2016,1225,
 455,105,14,1,2123,6000,7476,5376,2450,728,140,16,
 1,6046,19107,27000,22428,12096,4410,1092,180,18,1]