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A226816 as a simple table

na(n)
12
24
38
410
516
628
734
850
952
1058
1176
1282
1388
14130
15244
16250
17292
18344
19346
20352
21370
22424
23586
24730
25736
26778
271072
282188
292194
302236
312402
322404
332410
342428
352482
362530
372644
383130
394588
406562
416568
426610
436904
448962
4516808
4616810
4716816
4816834
4916888

[2,4,8,10,16,28,34,50,52,58,76,82,88,130,244,250,
 292,344,346,352,370,424,586,730,736,778,1072,2188,
 2194,2236,2402,2404,2410,2428,2482,2530,2644,3130,
 4588,6562,6568,6610,6904,8962,16808,16810,16816,
 16834,16888]