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A123486 as a simple table

na(n)
01
12
21
34
42
51
68
78
82
91
1016
1116
1212
132
141
1532
1648
1724
1816
192
201
2164
2296
2396
2432
2520
262
271
28128
29256
30192
31160
3240
3324
342
351
36256
37512
38640
39320
40240
4148
4228
432
441
45512
461280
471280
481280
49480
50336
5156
5232
532
541
551024
562560
573840
582560
592240
60672
61448
6264
6336
642
651

[1,2,1,4,2,1,8,8,2,1,16,16,12,2,1,32,48,24,16,2,1,
 64,96,96,32,20,2,1,128,256,192,160,40,24,2,1,256,
 512,640,320,240,48,28,2,1,512,1280,1280,1280,480,
 336,56,32,2,1,1024,2560,3840,2560,2240,672,448,64,
 36,2,1]