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A018851 as a simple table

na(n)
00
11
25
36
42
523
68
727
89
93
1010
1134
1211
1337
1412
1539
164
1742
1843
1914
2045
2146
2215
2348
2449
255
2651
2752
2817
2954
3055
3156
3218
3358
3459
35188
366
3761
3862
3963
4020
41203
4265
4366
4421
45213
4668
4769
4822
497
5071
5172
5223
5373
5474
55235
5675
5724
58241
5977
6078
61247
6225
63251
648
6581
66257
6726
6883
69263
7084
71267
7227

[0,1,5,6,2,23,8,27,9,3,10,34,11,37,12,39,4,42,43,
 14,45,46,15,48,49,5,51,52,17,54,55,56,18,58,59,
 188,6,61,62,63,20,203,65,66,21,213,68,69,22,7,71,
 72,23,73,74,235,75,24,241,77,78,247,25,251,8,81,
 257,26,83,263,84,267,27]