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A279690 as a simple table

na(n)
11
22
32
44
52
66
72
88
98
106
112
1212
132
146
156
1616
172
1818
192
2012
216
226
232
2418
258
266
274
2812
292
3030
312
328
336
346
356
3636
372
386
396
4040
412
4230
432
4412
4540
466
472
4848
498
5018
516
5212
532
5412
556
5640
576
586
592
6060
612
626
6340
6464
656
6630
672
6812
696
7030
712
7272
732
746
7540
7612
776
7830

[1,2,2,4,2,6,2,8,8,6,2,12,2,6,6,16,2,18,2,12,6,6,
 2,18,8,6,4,12,2,30,2,8,6,6,6,36,2,6,6,40,2,30,2,
 12,40,6,2,48,8,18,6,12,2,12,6,40,6,6,2,60,2,6,40,
 64,6,30,2,12,6,30,2,72,2,6,40,12,6,30]