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A066213 as a simple table

na(n)
11
24
39
416
520
625
730
836
949
1064
1180
1281
1390
14100
15120
16121
17126
18130
19144
20150
21169
22180
23195
24196
25210
26225
27252
28256
29264
30270
31272
32280
33289
34294
35300
36315
37320
38324
39330
40336
41350
42360
43361
44378
45390
46396
47400
48414
49420
50441
51450
52468
53480
54484
55500

[1,4,9,16,20,25,30,36,49,64,80,81,90,100,120,121,
 126,130,144,150,169,180,195,196,210,225,252,256,
 264,270,272,280,289,294,300,315,320,324,330,336,
 350,360,361,378,390,396,400,414,420,441,450,468,
 480,484,500]