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A232751 as a simple table

na(n)
00
11
23
32
47
55
615
76
811
931
1013
1123
124
1363
1427
1547
169
17127
1814
1955
2095
2119
22255
2329
24111
25191
2610
2739
28511
2959
30223
31383
3221
3379
341023
3530
36119
37447
38767
3943
40159
412047
4261
43239
44895
4512
461535
4787
48319
494095
50123
51479
521791
5325
543071
55175
5622
57639
588191

[0,1,3,2,7,5,15,6,11,31,13,23,4,63,27,47,9,127,14,
 55,95,19,255,29,111,191,10,39,511,59,223,383,21,
 79,1023,30,119,447,767,43,159,2047,61,239,895,12,
 1535,87,319,4095,123,479,1791,25,3071,175,22,639,
 8191]