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A087738 as a simple table

na(n)
01
12
21
34
42
51
66
74
82
91
1010
116
124
132
141
1512
1610
176
184
192
201
2116
2214
2316
24118
2544
2630
271
2818
2916
3020
31132
3274
3354
34102
351
3622
3720
3824
39140
4076
4196
42162
43120
441
4528
4624
4728
48152
4994
50112
51274
52190
53278
541
5530
5626
5734
58208
59156
60114
61300
62234
63614
6446
651
6636
6736
6846
69240
70158

[1,2,1,4,2,1,6,4,2,1,10,6,4,2,1,12,10,6,4,2,1,16,
 14,16,118,44,30,1,18,16,20,132,74,54,102,1,22,20,
 24,140,76,96,162,120,1,28,24,28,152,94,112,274,
 190,278,1,30,26,34,208,156,114,300,234,614,46,1,
 36,36,46,240,158]