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A231004 as a simple table

na(n)
11
22
33
44
55
67
78
89
910
1012
1113
1214
1315
1416
1518
1619
1720
1821
1923
2024
2125
2226
2327
2429
2530
2631
2732
2833
2935
3036
3137
3238
3340
3441
3542
3643
3744
3846
3947
4048
4149
4251
4352
4453
4554
4655
4757
4858
4959
5060
5161
5263
5364
5465
5566
5668
5769
5870
5971
6072
6174
6275
6376
6477
6579
6680
6781
6882
6983
7085
7186
7287

[1,2,3,4,5,7,8,9,10,12,13,14,15,16,18,19,20,21,23,
 24,25,26,27,29,30,31,32,33,35,36,37,38,40,41,42,
 43,44,46,47,48,49,51,52,53,54,55,57,58,59,60,61,
 63,64,65,66,68,69,70,71,72,74,75,76,77,79,80,81,
 82,83,85,86,87]