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A024906 as a simple table

na(n)
12
24
38
412
514
618
720
822
930
1034
1142
1244
1348
1454
1558
1660
1764
1868
1970
2082
2184
2290
2392
2498
25102
26104
27110
28112
29118
30124
31128
32130
33142
34144
35158
36162
37170
38172
39174
40180
41184
42188
43194
44198
45200
46208
47222
48224
49228
50232
51238
52240
53242
54250
55252
56254
57260
58264
59274
60278
61280

[2,4,8,12,14,18,20,22,30,34,42,44,48,54,58,60,64,
 68,70,82,84,90,92,98,102,104,110,112,118,124,128,
 130,142,144,158,162,170,172,174,180,184,188,194,
 198,200,208,222,224,228,232,238,240,242,250,252,
 254,260,264,274,278,280]