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A330740 as a simple table

na(n)
00
11
21
33
44
55
63
75
84
99
1010
1111
1212
1313
1414
1515
1616
1717
189
1911
2010
2115
2217
2316
2412
2514
2613
2727
2828
2929
3030
3131
3232
3333
3434
3535
3636
3737
3838
3939
4040
4141
4242
4343
4444
4545
4646
4747
4848
4949
5050
5151
5252
5353
5427
5529
5628
5733
5835
5934
6030
6132
6231
6345
6447
6546
6651
6753
6852
6948
7050
7149
7236
7338
7437
7542
7644
7743
7839
7941
8040
8181

[0,1,1,3,4,5,3,5,4,9,10,11,12,13,14,15,16,17,9,11,
 10,15,17,16,12,14,13,27,28,29,30,31,32,33,34,35,
 36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,
 52,53,27,29,28,33,35,34,30,32,31,45,47,46,51,53,
 52,48,50,49,36,38,37,42,44,43,39,41,40,81]