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A370981 as a simple table

na(n)
00
11
22
33
44
56
69
77
810
912
105
1111
1214
138
1416
1515
1620
1719
1813
1918
2021
2127
2226
2325
2431
2524
2630
2733
2834
2940
3032
3117
3238
3323
3437
3547
3642
3748
3856
3941
4022
4139
4229
4345
4455
4551
4657
4765
4850
4949
5058
5166
5236
5328
5446
5561
5667
5735
5860
5959
6068
6176
6286
6378
6488
6596

[0,1,2,3,4,6,9,7,10,12,5,11,14,8,16,15,20,19,13,
 18,21,27,26,25,31,24,30,33,34,40,32,17,38,23,37,
 47,42,48,56,41,22,39,29,45,55,51,57,65,50,49,58,
 66,36,28,46,61,67,35,60,59,68,76,86,78,88,96]