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A018216 as a simple table

na(n)
11
22
32
45
52
66
72
816
96
108
112
1216
132
1410
154
1667
172
1828
192
2022
2110
2214
232
2454
258
2616
2728
2828
292
3028
312
32374
334
3420
354
3678
372
3822
3916
4076
412
4236
432
4440
4512
4626
472
48236
4910
5064
514
5246
532
54212
5514
5698
5722
5832
592
6080
612
6234
6336
642825
654
6652
672
6858
694
7052
712
72272

[1,2,2,5,2,6,2,16,6,8,2,16,2,10,4,67,2,28,2,22,10,
 14,2,54,8,16,28,28,2,28,2,374,4,20,4,78,2,22,16,
 76,2,36,2,40,12,26,2,236,10,64,4,46,2,212,14,98,
 22,32,2,80,2,34,36,2825,4,52,2,58,4,52,2,272]