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A123715 as a simple table

na(n)
00
11
22
33
44
58
66
77
85
99
1013
1120
1221
1322
1414
1519
1616
1717
1818
1915
2011
2112
2210
2323
2427
2534
2635
2736
2854
2955
3057
3158
3259
3361
3462
3563
3664
3737
3841
3953
4056
4160
4242
4351
4444
4545
4646
4747
4848
4949
5050
5143
5252
5339
5428
5533
5640
5730
5831
5932
6038
6129
6225
6326
6424
6565
6669
6776
6877
6978
7096
7197

[0,1,2,3,4,8,6,7,5,9,13,20,21,22,14,19,16,17,18,
 15,11,12,10,23,27,34,35,36,54,55,57,58,59,61,62,
 63,64,37,41,53,56,60,42,51,44,45,46,47,48,49,50,
 43,52,39,28,33,40,30,31,32,38,29,25,26,24,65,69,
 76,77,78,96,97]