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A001993 as a simple table

na(n)
01
11
23
35
49
513
622
730
845
961
1085
11111
12150
13190
14247
15309
16390
17478
18593
19715
20870
211038
221243
231465
241735
252023
262368
272740
283175
293643
304189
314771
325443
336163
346982
357858
368852
379908
3811098
3912366
4013780
4115284
4216958
4318730
4420692
4522772
4625058
4727478

[1,1,3,5,9,13,22,30,45,61,85,111,150,190,247,309,
 390,478,593,715,870,1038,1243,1465,1735,2023,2368,
 2740,3175,3643,4189,4771,5443,6163,6982,7858,8852,
 9908,11098,12366,13780,15284,16958,18730,20692,
 22772,25058,27478]