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A070605 as a simple table

na(n)
00
11
211
312
416
517
66
77
88
918
1019
112
123
1313
1414
1515
164
175
189
1910
2020
210
221
2311
2412
2516
2617
276
287
298
3018
3119
322
333
3413
3514
3615
374
385
399
4010
4120
420
431
4411
4512
4616
4717
486
497
508
5118
5219
532
543
5513
5614
5715
584
595
609
6110
6220
630
641
6511
6612
6716
6817
696
707
718
7218
7319
742
753
7613
7714
7815
794
805
819

[0,1,11,12,16,17,6,7,8,18,19,2,3,13,14,15,4,5,9,
 10,20,0,1,11,12,16,17,6,7,8,18,19,2,3,13,14,15,4,
 5,9,10,20,0,1,11,12,16,17,6,7,8,18,19,2,3,13,14,
 15,4,5,9,10,20,0,1,11,12,16,17,6,7,8,18,19,2,3,13,
 14,15,4,5,9]