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A055248 as a simple table

na(n)
01
12
21
34
43
51
68
77
84
91
1016
1115
1211
135
141
1532
1631
1726
1816
196
201
2164
2263
2357
2442
2522
267
271
28128
29127
30120
3199
3264
3329
348
351
36256
37255
38247
39219
40163
4193
4237
439
441
45512
46511
47502
48466
49382
50256
51130
5246
5310
541
551024
561023
571013
58968
59848
60638
61386
62176
6356
6411
651

[1,2,1,4,3,1,8,7,4,1,16,15,11,5,1,32,31,26,16,6,1,
 64,63,57,42,22,7,1,128,127,120,99,64,29,8,1,256,
 255,247,219,163,93,37,9,1,512,511,502,466,382,256,
 130,46,10,1,1024,1023,1013,968,848,638,386,176,56,
 11,1]