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A264978 as a simple table

na(n)
00
11
22
33
48
55
66
77
84
99
1010
1117
1224
1326
1414
1515
1623
1711
1818
1929
2020
2121
2225
2316
2412
2522
2613
2727
2828
2919
3030
3171
3244
3351
3462
3535
3672
3789
3853
3978
4080
4141
4242
4368
4432
4545
4686
4759
4869
4977
5050
5133
5265
5338
5454
5583
5656
5787
5874
5947
6060
6161
6234
6363
6488
6552
6675
6779
6843
6948
7070
7131
7236
7385
7458
7566
7676
7749
7839
7967
8040
8181

[0,1,2,3,8,5,6,7,4,9,10,17,24,26,14,15,23,11,18,
 29,20,21,25,16,12,22,13,27,28,19,30,71,44,51,62,
 35,72,89,53,78,80,41,42,68,32,45,86,59,69,77,50,
 33,65,38,54,83,56,87,74,47,60,61,34,63,88,52,75,
 79,43,48,70,31,36,85,58,66,76,49,39,67,40,81]