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A298208 as a simple table

na(n)
10
21
320
411
52
610
722
813
924
103
114
1223
1314
1425
1516
165
176
1815
1926
2017
2128
227
238
2427
2518
2629
2731
289
2912
3039
3121
3230
3319
3432
3541
3633
3740
3835
3942
4036
4144
4237
4345
4438
4546
4653
4747
4850
4934
5051
5143
5252
5348
5455
5549
5656
5774
5858
5964
6057
6160
6254
6361
6459
6562
6675
6763
6870

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