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A087370 as a simple table

na(n)
11
22
34
46
58
610
714
816
918
1020
1124
1228
1330
1434
1536
1638
1744
1846
1950
2056
2158
2260
2364
2466
2576
2678
2780
2884
2986
3088
3190
3294
3398
34104
35106
36116
37118
38120
39128
40130
41134
42140
43144
44148
45150
46154
47156
48160
49164
50168
51170
52174
53186
54188
55190
56196
57198
58200
59206
60214
61216

[1,2,4,6,8,10,14,16,18,20,24,28,30,34,36,38,44,46,
 50,56,58,60,64,66,76,78,80,84,86,88,90,94,98,104,
 106,116,118,120,128,130,134,140,144,148,150,154,
 156,160,164,168,170,174,186,188,190,196,198,200,
 206,214,216]