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A032516 as a simple table

na(n)
00
11
22
33
44
55
66
77
88
99
1010
1111
1213
1315
1417
1519
1621
1723
1825
1927
2029
2131
2233
2335
2437
2539
2641
2743
2845
2947
3049
3151
3253
3355
3457
3559
3661
3763
3865
3967
4069
4171
4273
4375
4477
4579
4681
4784
4887
4990
5093
5196
5299
53102
54105
55108
56111
57114
58117
59120
60123
61126
62129
63132
64135
65138
66141

[0,1,2,3,4,5,6,7,8,9,10,11,13,15,17,19,21,23,25,
 27,29,31,33,35,37,39,41,43,45,47,49,51,53,55,57,
 59,61,63,65,67,69,71,73,75,77,79,81,84,87,90,93,
 96,99,102,105,108,111,114,117,120,123,126,129,132,
 135,138,141]