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A130584 as a simple table

na(n)
01
12
21
34
42
52
68
74
86
92
1016
118
1212
138
144
1532
1616
1722
1820
1920
202
2164
2232
2342
2440
2560
2612
276
28128
2964
3084
3172
32140
3342
3442
354
36256
37128
38170
39128
40280
41112
42168
4332
446
45512
46256
47342
48240
49508
50252
51504
52144
5354
544

[1,2,1,4,2,2,8,4,6,2,16,8,12,8,4,32,16,22,20,20,2,
 64,32,42,40,60,12,6,128,64,84,72,140,42,42,4,256,
 128,170,128,280,112,168,32,6,512,256,342,240,508,
 252,504,144,54,4]