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A326930 as a simple table

na(n)
11
23
33
43
57
66
77
88
913
1010
1113
1212
1313
1415
1515
1615
1717
1821
1919
2021
2121
2221
2325
2424
2525
2627
2727
2827
2931
3030
3131
3232
3335
3434
3535
3639
3737
3839
3939
4039
4143
4242
4343
4444
4549
4646
4749
4848
4949
5051
5151
5251
5355
5454
5555
5656
5761
5858
5961
6060
6161
6263
6363
6463
6565
6669
6767
6869
6969
7069
7171
7275

[1,3,3,3,7,6,7,8,13,10,13,12,13,15,15,15,17,21,19,
 21,21,21,25,24,25,27,27,27,31,30,31,32,35,34,35,
 39,37,39,39,39,43,42,43,44,49,46,49,48,49,51,51,
 51,55,54,55,56,61,58,61,60,61,63,63,63,65,69,67,
 69,69,69,71,75]