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A071638 as a simple table

na(n)
11
22
36
410
512
620
724
834
940
1048
1160
1268
1380
1485
1596
16136
17160
18192
19272
20320
21384
22399
23514
24544
25640
26768
271028
281088
291280
301536
312040
322056
332176
342560
353072
364112
374352
385120
396144
408224
418704
4210240
4312288
4413805
4516448
4617408
4720480
4824576

[1,2,6,10,12,20,24,34,40,48,60,68,80,85,96,136,
 160,192,272,320,384,399,514,544,640,768,1028,1088,
 1280,1536,2040,2056,2176,2560,3072,4112,4352,5120,
 6144,8224,8704,10240,12288,13805,16448,17408,
 20480,24576]