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A109974 as a simple table

na(n)
01
12
21
32
43
51
63
74
85
91
102
117
1210
139
141
154
166
1721
1828
1917
201
212
2212
2326
2473
2582
2633
271
284
298
3050
31126
32273
33244
3465
351
363
3715
3850
39252
40626
411057
42730
43129
441
454
4613
4785
48344
491394
503126
514161
522188
53257
541
552
5618
5791
58585
592402
608052
6115626
6216513
636562
64513
651

[1,2,1,2,3,1,3,4,5,1,2,7,10,9,1,4,6,21,28,17,1,2,
 12,26,73,82,33,1,4,8,50,126,273,244,65,1,3,15,50,
 252,626,1057,730,129,1,4,13,85,344,1394,3126,4161,
 2188,257,1,2,18,91,585,2402,8052,15626,16513,6562,
 513,1]