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A089965 as a simple table

na(n)
12
24
312
436
560
672
7156
8192
9276
10312
11396
12420
13456
14540
15612
16660
17672
18732
19756
20876
21996
221092
231152
241200
251212
261236
271320
281380
291452
301620
311656
321752
331872
341932
351992
362016
372136
382340
392472
402556
412592
422796
432856
442916
453060
463216
473252

[2,4,12,36,60,72,156,192,276,312,396,420,456,540,
 612,660,672,732,756,876,996,1092,1152,1200,1212,
 1236,1320,1380,1452,1620,1656,1752,1872,1932,1992,
 2016,2136,2340,2472,2556,2592,2796,2856,2916,3060,
 3216,3252]