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A380110 as a simple table

na(n)
00
11
21
32
44
55
65
76
84
95
105
116
128
139
149
1510
1616
1717
1817
1918
2020
2121
2221
2322
2420
2521
2621
2722
2824
2925
3025
3126
3216
3317
3417
3518
3620
3721
3821
3922
4020
4121
4221
4322
4424
4525
4625
4726
4832
4933
5033
5134
5236
5337
5437
5538
5636
5737
5837
5938
6040
6141
6241
6342
6464
6565
6665
6766
6868
6969

[0,1,1,2,4,5,5,6,4,5,5,6,8,9,9,10,16,17,17,18,20,
 21,21,22,20,21,21,22,24,25,25,26,16,17,17,18,20,
 21,21,22,20,21,21,22,24,25,25,26,32,33,33,34,36,
 37,37,38,36,37,37,38,40,41,41,42,64,65,65,66,68,
 69]