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A268920 as a simple table

na(n)
1120
2120
315
4120
5120
640
7240
815
9240
1015
11120
12120
13120
14120
1524
16120
1715
1840
1915
20120
215
22840
23840
24840
25840
26840
27840
28120
29480
3030
31480
3215
33480
3430
35480
3615
37360
38360
3940
40360
41360
4240
43360
44360
4540
46120
4715
48120
4915
5024
5115
52120
5315
54120
553
561320
571320
581320
591320
601320
611320
621320
631320
641320
651320
66120
67240
6815
6980
7015
71240
725
73240
7415
7580
7615
77240
785

[120,120,15,120,120,40,240,15,240,15,120,120,120,
 120,24,120,15,40,15,120,5,840,840,840,840,840,840,
 120,480,30,480,15,480,30,480,15,360,360,40,360,
 360,40,360,360,40,120,15,120,15,24,15,120,15,120,
 3,1320,1320,1320,1320,1320,1320,1320,1320,1320,
 1320,120,240,15,80,15,240,5,240,15,80,15,240,5]