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A161659 as a simple table

na(n)
22
33
44
55
66
77
89
910
1010
1111
1212
1313
1414
1516
1616
1717
1818
1919
2021
2122
2222
2323
2424
2526
2626
2727
2830
2929
3030
3131
3235
3334
3434
3536
3636
3737
3838
3940
4040
4141
4242
4343
4445
4545
4646
4747
4850
4950
5051
5152
5254
5353
5456
5556
5656
5758
5858
5959
6060
6161
6262
6363
6466
6566
6666
6767
6869
6970
7072
7171
7275
7373

[2,3,4,5,6,7,9,10,10,11,12,13,14,16,16,17,18,19,
 21,22,22,23,24,26,26,27,30,29,30,31,35,34,34,36,
 36,37,38,40,40,41,42,43,45,45,46,47,50,50,51,52,
 54,53,56,56,56,58,58,59,60,61,62,63,66,66,66,67,
 69,70,72,71,75,73]