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A197943 as a simple table

na(n)
10
21
31
43
51
65
71
87
97
109
111
1211
131
1413
1510
1615
171
1817
191
2019
2118
2221
231
2423
2521
2625
2725
2827
291
3029
311
3231
3331
3433
3530
3635
371
3837
3936
4039
411
4241
431
4443
4540
4645
471
4847
4943
5049
5149
5251
531
5453
5549
5655
5755
5857
591
6059
611
6261
6358
6463
6561
6665
671
6867
6964
7069
711
7271
731
7473
7569
7675
7771
7877
791
8079
8179
8281
831
8483
8581
8685
8782
8887
891
9089
9178

[0,1,1,3,1,5,1,7,7,9,1,11,1,13,10,15,1,17,1,19,18,
 21,1,23,21,25,25,27,1,29,1,31,31,33,30,35,1,37,36,
 39,1,41,1,43,40,45,1,47,43,49,49,51,1,53,49,55,55,
 57,1,59,1,61,58,63,61,65,1,67,64,69,1,71,1,73,69,
 75,71,77,1,79,79,81,1,83,81,85,82,87,1,89,78]