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A125981 as a simple table

na(n)
00
11
23
32
47
58
65
76
84
917
1018
1120
1222
1321
1412
1513
1615
1716
1819
1910
2011
2114
229
2345
2446
2548
2650
2749
2854
2955
3061
3163
3264
3357
3459
3562
3658
3731
3832
3934
4036
4135
4240
4341
4443
4544
4647
4752
4853
4960
5056
5126
5227
5329
5430
5533
5638
5739
5842
5951
6024
6125
6228
6337
6423
65129
66130
67132
68134
69133

[0,1,3,2,7,8,5,6,4,17,18,20,22,21,12,13,15,16,19,
 10,11,14,9,45,46,48,50,49,54,55,61,63,64,57,59,62,
 58,31,32,34,36,35,40,41,43,44,47,52,53,60,56,26,
 27,29,30,33,38,39,42,51,24,25,28,37,23,129,130,
 132,134,133]