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A193388 as a simple table

na(n)
10
20
32
42
56
62
78
86
98
106
1112
126
1324
148
1514
1614
1730
188
1926
2014
2124
2212
2324
2414
2536
2624
2726
2824
2948
3014
3148
3230
3336
3430
3556
3624
3778
3826
3956
4030
4184
4224
4364
4436
4556
4624
4748
4830
4964
5036
5162
5256
5384
5426
5584
5656
5778
5848
5960
6030
61144
6248
6378
6462
65120
6636
6796

[0,0,2,2,6,2,8,6,8,6,12,6,24,8,14,14,30,8,26,14,
 24,12,24,14,36,24,26,24,48,14,48,30,36,30,56,24,
 78,26,56,30,84,24,64,36,56,24,48,30,64,36,62,56,
 84,26,84,56,78,48,60,30,144,48,78,62,120,36,96]