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A243989 as a simple table

na(n)
11
23
34
46
57
69
711
812
914
1015
1117
1218
1320
1421
1523
1625
1726
1828
1929
2031
2132
2234
2336
2437
2539
2640
2742
2843
2945
3047
3148
3250
3351
3453
3554
3656
3758
3859
3961
4062
4164
4265
4367
4469
4570
4672
4773
4875
4976
5078
5180
5281
5383
5484
5586
5687
5789
5891
5992
6094
6195
6297
6398
64100
65102
66103

[1,3,4,6,7,9,11,12,14,15,17,18,20,21,23,25,26,28,
 29,31,32,34,36,37,39,40,42,43,45,47,48,50,51,53,
 54,56,58,59,61,62,64,65,67,69,70,72,73,75,76,78,
 80,81,83,84,86,87,89,91,92,94,95,97,98,100,102,
 103]