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A152883 as a simple table

na(n)
21
34
42
518
612
76
896
972
1048
1124
12600
13480
14360
15240
16120
174320
183600
192880
202160
211440
22720
2335280
2430240
2525200
2620160
2715120
2810080
295040
30322560
31282240
32241920
33201600
34161280
35120960
3680640
3740320
383265920
392903040
402540160
412177280
421814400
431451520
441088640
45725760
46362880

[1,4,2,18,12,6,96,72,48,24,600,480,360,240,120,
 4320,3600,2880,2160,1440,720,35280,30240,25200,
 20160,15120,10080,5040,322560,282240,241920,
 201600,161280,120960,80640,40320,3265920,2903040,
 2540160,2177280,1814400,1451520,1088640,725760,
 362880]