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A181578 as a simple table

na(n)
00
11
22
33
44
50
65
76
87
98
109
110
1210
1311
1412
1513
1614
170
1815
1916
2017
2118
2219
230
2420
2521
2622
2723
2824
290
300
3125
3226
3327
3428
3529
360
3730
3831
3932
4033
4134
420
4335
4436
4537
4638
4739
480
4940
5041
5142
5243
5344
540
5545
5646
5747
5848
5949
600
610
6250
6351
6452
6553
6654
670
6855
6956
7057
7158
7259
730
7460
7561
7662
7763

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