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A088720 as a simple table

na(n)
34
45
56
68
79
810
911
1012
1114
1216
1317
1418
1519
1620
1721
1822
1923
2024
2126
2228
2330
2432
2533
2634
2735
2836
2937
3038
3139
3240
3341
3442
3543
3644
3745
3846
3947
4048
4150
4252
4354
4456
4558
4660
4762
4864
4965
5066
5167
5268
5369
5470
5571
5672
5773
5874
5975
6076
6177
6278
6379
6480
6581
6682
6783
6884
6985
7086
7187
7288
7389

[4,5,6,8,9,10,11,12,14,16,17,18,19,20,21,22,23,24,
 26,28,30,32,33,34,35,36,37,38,39,40,41,42,43,44,
 45,46,47,48,50,52,54,56,58,60,62,64,65,66,67,68,
 69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,
 85,86,87,88,89]