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A057923 as a simple table

na(n)
00
12
21
34
42
55
68
76
89
916
1010
1117
1212
1318
1413
1532
1614
1733
1816
1934
2017
2136
2218
2337
2424
2538
2625
2764
2826
2965
3028
3166
3229
3396
3430
3597
36128
3798
38129
39100
40130
41101
42136
43102
44137
45112
46138
47113
48140
49114
50141
51256
52142
53257
54144
55258
56145
57260
58146
59261
60152
61262
62153

[0,2,1,4,2,5,8,6,9,16,10,17,12,18,13,32,14,33,16,
 34,17,36,18,37,24,38,25,64,26,65,28,66,29,96,30,
 97,128,98,129,100,130,101,136,102,137,112,138,113,
 140,114,141,256,142,257,144,258,145,260,146,261,
 152,262,153]