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A064408 as a simple table

na(n)
12
24
36
48
516
622
728
830
934
1040
1142
1246
1352
1454
1558
1660
1764
1870
1972
2076
2182
2284
2388
2490
2594
2696
2798
28100
29102
30106
31112
32118
33120
34124
35126
36130
37132
38136
39138
40142
41148
42150
43154
44160
45162
46166
47168
48172
49174
50178
51180
52184
53190
54192
55196

[2,4,6,8,16,22,28,30,34,40,42,46,52,54,58,60,64,
 70,72,76,82,84,88,90,94,96,98,100,102,106,112,118,
 120,124,126,130,132,136,138,142,148,150,154,160,
 162,166,168,172,174,178,180,184,190,192,196]