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A321767 as a simple table

na(n)
00
11
22
33
44
55
66
77
88
99
1010
1119
1212
1313
1414
1515
1616
1717
1818
1911
2020
2121
2222
2323
2424
2525
2626
2727
2828
2955
3030
3137
3246
3357
3464
3573
3636
3731
3858
3939
4040
4141
4242
4343
4444
4545
4632
4759
4848
4949
5050
5151
5252
5353
5454
5529
5656
5733
5838
5947
6060
6165
6274
6363
6434
6561
6666
6767

[0,1,2,3,4,5,6,7,8,9,10,19,12,13,14,15,16,17,18,
 11,20,21,22,23,24,25,26,27,28,55,30,37,46,57,64,
 73,36,31,58,39,40,41,42,43,44,45,32,59,48,49,50,
 51,52,53,54,29,56,33,38,47,60,65,74,63,34,61,66,
 67]