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A064407 as a simple table

na(n)
12
24
312
418
524
626
730
836
938
1042
1148
1250
1354
1456
1560
1666
1768
1872
1978
2080
2184
2286
2390
2492
2594
2696
2798
28102
29108
30114
31116
32120
33122
34126
35128
36132
37134
38138
39144
40146
41150
42156
43158
44162
45164
46168
47170
48174
49176
50180
51186
52188
53192
54198

[2,4,12,18,24,26,30,36,38,42,48,50,54,56,60,66,68,
 72,78,80,84,86,90,92,94,96,98,102,108,114,116,120,
 122,126,128,132,134,138,144,146,150,156,158,162,
 164,168,170,174,176,180,186,188,192,198]