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A247425 as a simple table

na(n)
11
23
34
46
57
69
711
812
914
1016
1117
1219
1320
1422
1524
1625
1727
1828
1930
2032
2133
2235
2337
2438
2540
2641
2743
2845
2946
3048
3149
3251
3353
3454
3556
3658
3759
3861
3962
4064
4166
4267
4369
4471
4572
4674
4775
4877
4979
5080
5182
5283
5385
5487
5588
5690
5792
5893
5995
6096
6198
62100
63101
64103
65105

[1,3,4,6,7,9,11,12,14,16,17,19,20,22,24,25,27,28,
 30,32,33,35,37,38,40,41,43,45,46,48,49,51,53,54,
 56,58,59,61,62,64,66,67,69,71,72,74,75,77,79,80,
 82,83,85,87,88,90,92,93,95,96,98,100,101,103,105]