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A238862 as a simple table

na(n)
11
22
33
44
56
67
75
89
911
108
1110
1212
1314
1415
1513
1618
1720
1816
1924
2019
2117
2221
2323
2425
2522
2627
2729
2826
2928
3030
3132
3233
3331
3435
3537
3638
3736
3841
3943
4039
4147
4251
4334
4440
4542
4644
4746
4848
4945
5050
5152
5249
5353
5455
5557
5654
5758
5860
5961
6056
6165
6263
6366
6459
6564
6669
6772

[1,2,3,4,6,7,5,9,11,8,10,12,14,15,13,18,20,16,24,
 19,17,21,23,25,22,27,29,26,28,30,32,33,31,35,37,
 38,36,41,43,39,47,51,34,40,42,44,46,48,45,50,52,
 49,53,55,57,54,58,60,61,56,65,63,66,59,64,69,72]