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A064409 as a simple table

na(n)
12
24
36
414
520
626
728
832
938
1040
1144
1250
1352
1456
1558
1662
1768
1870
1974
2080
2182
2286
2388
2492
2594
2696
2798
28100
29104
30110
31116
32118
33122
34124
35128
36130
37134
38136
39140
40146
41148
42152
43158
44160
45164
46166
47170
48172
49176
50178
51182
52188
53190
54194
55200

[2,4,6,14,20,26,28,32,38,40,44,50,52,56,58,62,68,
 70,74,80,82,86,88,92,94,96,98,100,104,110,116,118,
 122,124,128,130,134,136,140,146,148,152,158,160,
 164,166,170,172,176,178,182,188,190,194,200]