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A217795 as a simple table

na(n)
12
24
346
454
580
688
7140
8276
9492
10554
11566
12582
13730
14758
15786
16798
17912
18928
191142
201150
211200
221236
231404
241540
251552
261610
271644
281650
291932
301942
312044
322102
332204
342222
352224
362238
372254
382374
392436
402486
412510
422640
432674
442698
452732
462734
473244
483286

[2,4,46,54,80,88,140,276,492,554,566,582,730,758,
 786,798,912,928,1142,1150,1200,1236,1404,1540,
 1552,1610,1644,1650,1932,1942,2044,2102,2204,2222,
 2224,2238,2254,2374,2436,2486,2510,2640,2674,2698,
 2732,2734,3244,3286]