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A147569 as a simple table

na(n)
11
23
34
412
528
624
724
872
948
1096
11120
12144
13168
14192
15336
16480
17360
18576
19480
20720
21720
22576
23720
241344
251440
261440
271440
281872
291728
301920
311680
322880
332016
341440
352880
362880
372880
383600
395760
404320
415040
427200
436720
447392
458064
468640
478640
485760
495616

[1,3,4,12,28,24,24,72,48,96,120,144,168,192,336,
 480,360,576,480,720,720,576,720,1344,1440,1440,
 1440,1872,1728,1920,1680,2880,2016,1440,2880,2880,
 2880,3600,5760,4320,5040,7200,6720,7392,8064,8640,
 8640,5760,5616]