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A001616 as a simple table

na(n)
11
22
32
43
52
64
72
84
94
104
112
126
132
144
154
166
172
188
192
206
214
224
232
248
256
264
276
286
292
308
312
328
334
344
354
3612
372
384
394
408
412
428
432
446
458
464
472
4812
498
5012
514
526
532
5412
554
568
574
584
592
6012
612
624
638
6412
654
668
672
686
694
708
712
7216
732
744
7512
766
774
788
792
8012
8112
824
832
8412
854
864
874
888
892
9016
914
926
934
944
954
9616

[1,2,2,3,2,4,2,4,4,4,2,6,2,4,4,6,2,8,2,6,4,4,2,8,
 6,4,6,6,2,8,2,8,4,4,4,12,2,4,4,8,2,8,2,6,8,4,2,12,
 8,12,4,6,2,12,4,8,4,4,2,12,2,4,8,12,4,8,2,6,4,8,2,
 16,2,4,12,6,4,8,2,12,12,4,2,12,4,4,4,8,2,16,4,6,4,
 4,4,16]