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A028815 as a simple table

na(n)
02
13
24
36
48
512
614
718
820
924
1030
1132
1238
1342
1444
1548
1654
1760
1862
1968
2072
2174
2280
2384
2490
2598
26102
27104
28108
29110
30114
31128
32132
33138
34140
35150
36152
37158
38164
39168
40174
41180
42182
43192
44194
45198
46200
47212
48224
49228
50230
51234
52240
53242
54252
55258
56264
57270
58272
59278
60282
61284

[2,3,4,6,8,12,14,18,20,24,30,32,38,42,44,48,54,60,
 62,68,72,74,80,84,90,98,102,104,108,110,114,128,
 132,138,140,150,152,158,164,168,174,180,182,192,
 194,198,200,212,224,228,230,234,240,242,252,258,
 264,270,272,278,282,284]