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A039212 as a simple table

na(n)
11
22
34
45
56
67
78
89
910
1011
1113
1214
1316
1417
1518
1619
1720
1821
1922
2023
2125
2226
2328
2429
2530
2631
2732
2833
2934
3035
3136
3249
3350
3452
3553
3654
3755
3856
3957
4058
4159
4261
4362
4464
4565
4666
4767
4868
4969
5070
5171
5273
5374
5476
5577
5678
5779
5880
5981
6082
6183
6285
6386
6488
6589
6690
6791
6892
6993
7094

[1,2,4,5,6,7,8,9,10,11,13,14,16,17,18,19,20,21,22,
 23,25,26,28,29,30,31,32,33,34,35,36,49,50,52,53,
 54,55,56,57,58,59,61,62,64,65,66,67,68,69,70,71,
 73,74,76,77,78,79,80,81,82,83,85,86,88,89,90,91,
 92,93,94]