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A181311 as a simple table

na(n)
18
216
324
436
548
672
796
8108
9144
10180
11216
12240
13288
14300
15360
16480
17540
18600
19720
20960
211080
221200
231260
241440
251620
261680
271800
281920
292100
302160
312400
322520
332880
343024
353240
363360
373600
383780
394200
404320
415040
425760
435880
446300
456720
467200
477560

[8,16,24,36,48,72,96,108,144,180,216,240,288,300,
 360,480,540,600,720,960,1080,1200,1260,1440,1620,
 1680,1800,1920,2100,2160,2400,2520,2880,3024,3240,
 3360,3600,3780,4200,4320,5040,5760,5880,6300,6720,
 7200,7560]