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A186749 as a simple table

na(n)
12
22
32
44
52
66
72
86
92
106
112
1210
132
1410
154
1610
172
188
192
208
214
228
232
2418
254
2616
274
2818
292
3020
312
3218
338
3412
356
3618
372
3822
396
4018
412
4220
432
4418
458
4618
472
4824
494
5020
5110
5230
532
5424
556
5624
578
5820
592
6046
612
6224
638
6424
658
6642
672
6824
6912
7042
712
7232
732
7440
7518
7642

[2,2,2,4,2,6,2,6,2,6,2,10,2,10,4,10,2,8,2,8,4,8,2,
 18,4,16,4,18,2,20,2,18,8,12,6,18,2,22,6,18,2,20,2,
 18,8,18,2,24,4,20,10,30,2,24,6,24,8,20,2,46,2,24,
 8,24,8,42,2,24,12,42,2,32,2,40,18,42]