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A066678 as a simple table

na(n)
11
22
36
44
510
66
728
88
918
1010
1122
1212
1352
1428
1530
1616
17102
1818
19190
2020
2142
2222
2346
2424
25100
2652
2754
2828
2958
3030
31310
3232
3366
34102
3570
3636
37148
38190
3978
4040
4182
4242
43172
4444
45180
4646
47282
4848
49196
50100
51102
5252
53106
5454
55110
5656
57228
5858
59708
6060
61366
62310
63126
6464

[1,2,6,4,10,6,28,8,18,10,22,12,52,28,30,16,102,18,
 190,20,42,22,46,24,100,52,54,28,58,30,310,32,66,
 102,70,36,148,190,78,40,82,42,172,44,180,46,282,
 48,196,100,102,52,106,54,110,56,228,58,708,60,366,
 310,126,64]