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A173490 as a simple table

na(n)
112
218
320
424
530
636
740
842
948
1054
1156
1260
1366
1470
1572
1678
1780
1884
1988
2090
2196
22100
23102
24104
25108
26112
27114
28120
29126
30132
31138
32140
33144
34150
35156
36160
37162
38168
39174
40176
41180
42186
43192
44196
45198
46200
47204
48208
49210
50216
51220
52222
53224
54228
55234
56240

[12,18,20,24,30,36,40,42,48,54,56,60,66,70,72,78,
 80,84,88,90,96,100,102,104,108,112,114,120,126,
 132,138,140,144,150,156,160,162,168,174,176,180,
 186,192,196,198,200,204,208,210,216,220,222,224,
 228,234,240]