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A268821 as a simple table

na(n)
00
11
23
32
47
56
613
712
85
94
1025
1124
129
138
1415
1514
1611
1710
1849
1948
2017
2116
2223
2322
2419
2518
2627
2726
2831
2930
3021
3120
3229
3328
3497
3596
3633
3732
3839
3938
4035
4134
4243
4342
4447
4546
4637
4736
4845
4944
5051
5150
5255
5354
5461
5560
5653
5752
5841
5940
6057
6156
6263
6362
6459
6558
66193
67192
6865
6964
7071
7170
7267
7366
7475
7574
7679
7778
7869
7968
8077
8176
8283
8382

[0,1,3,2,7,6,13,12,5,4,25,24,9,8,15,14,11,10,49,
 48,17,16,23,22,19,18,27,26,31,30,21,20,29,28,97,
 96,33,32,39,38,35,34,43,42,47,46,37,36,45,44,51,
 50,55,54,61,60,53,52,41,40,57,56,63,62,59,58,193,
 192,65,64,71,70,67,66,75,74,79,78,69,68,77,76,83,
 82]