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A161654 as a simple table

na(n)
11
22
32
43
54
64
76
88
99
108
1110
1212
1312
1412
1512
1615
1716
1818
1918
2018
2120
2220
2322
2424
2524
2624
2724
2824
2928
3024
3130
3230
3332
3432
3532
3636
3736
3836
3936
4040
4140
4240
4342
4442
4542
4644
4746
4840
4948
5048
5148
5248
5352
5448
5552
5656
5756
5856
5958
6060
6160
6260
6360
6463
6564
6664
6766
6866
6968
7064
7170
7272
7372

[1,2,2,3,4,4,6,8,9,8,10,12,12,12,12,15,16,18,18,
 18,20,20,22,24,24,24,24,24,28,24,30,30,32,32,32,
 36,36,36,36,40,40,40,42,42,42,44,46,40,48,48,48,
 48,52,48,52,56,56,56,58,60,60,60,60,63,64,64,66,
 66,68,64,70,72,72]