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A001212 as a simple table

na(n)
12
24
38
412
516
620
726
832
940
1046
1154
1264
1372
1480
1592
16104
17116
18128
19140
20152
21164
22180
23196
24212

[2,4,8,12,16,20,26,32,40,46,54,64,72,80,92,104,
 116,128,140,152,164,180,196,212]

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Last modified September 23 16:16 EDT 2024. Contains 376178 sequences. (Running on oeis4.)