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A298040 as a simple table

na(n)
01
14
220
324
440
540
660
756
880
972
10100
1188
12120
13104
14140
15120
16160
17136
18180
19152
20200
21168
22220
23184
24240
25200
26260
27216
28280
29232
30300
31248
32320
33264
34340
35280
36360
37296
38380
39312
40400
41328
42420
43344
44440
45360
46460
47376
48480
49392
50500
51408
52520
53424
54540

[1,4,20,24,40,40,60,56,80,72,100,88,120,104,140,
 120,160,136,180,152,200,168,220,184,240,200,260,
 216,280,232,300,248,320,264,340,280,360,296,380,
 312,400,328,420,344,440,360,460,376,480,392,500,
 408,520,424,540]