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A087915 as a simple table

na(n)
10
22
34
48
510
614
720
822
928
1032
1134
1238
1340
1450
1552
1662
1764
1868
1974
2080
2182
2288
2394
2498
25104
26110
27112
28118
29124
30130
31134
32140
33152
34154
35164
36172
37178
38182
39188
40190
41208
42214
43218
44220
45230
46232
47238
48242
49244
50248
51250
52260
53272
54280
55284
56292
57298
58302

[0,2,4,8,10,14,20,22,28,32,34,38,40,50,52,62,64,
 68,74,80,82,88,94,98,104,110,112,118,124,130,134,
 140,152,154,164,172,178,182,188,190,208,214,218,
 220,230,232,238,242,244,248,250,260,272,280,284,
 292,298,302]