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A137428 as a simple table

na(n)
120
228
340
442
544
652
756
860
966
1068
1176
1278
1380
1484
1588
1692
1799
18100
19102
20104
21110
22112
23114
24116
25117
26120
27124
28126
29130
30132
31136
32138
33140
34148
35152
36153
37156
38160
39164
40168
41170
42171
43172
44174
45176
46180
47184
48186
49188
50190
51196
52198
53200
54204
55207
56208

[20,28,40,42,44,52,56,60,66,68,76,78,80,84,88,92,
 99,100,102,104,110,112,114,116,117,120,124,126,
 130,132,136,138,140,148,152,153,156,160,164,168,
 170,171,172,174,176,180,184,186,188,190,196,198,
 200,204,207,208]