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A072798 as a simple table

na(n)
00
11
23
32
44
58
69
77
85
96
1012
1111
1210
1313
1422
1523
1626
1725
1827
1921
2024
2119
2214
2315
2420
2517
2616
2718
2835
2936
3034
3131
3232
3333
3430
3528
3629
3740
3839
3938
4037
4141
4264
4365
4468
4567
4669
4777
4878
4976
5073
5174
5282
5381
5480
5583
5663
5766
5875
5972
6079
6161
6270
6356
6442
6543
6657
6745
6844
6946
7062
7171

[0,1,3,2,4,8,9,7,5,6,12,11,10,13,22,23,26,25,27,
 21,24,19,14,15,20,17,16,18,35,36,34,31,32,33,30,
 28,29,40,39,38,37,41,64,65,68,67,69,77,78,76,73,
 74,82,81,80,83,63,66,75,72,79,61,70,56,42,43,57,
 45,44,46,62,71]