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A028591 as a simple table

na(n)
01
10
20
30
44
50
60
78
84
90
100
1116
120
130
1416
158
164
170
180
1916
208
210
2232
2316
244
250
260
270
2816
290
3016
3140
3220
330
340
3548
364
370
3832
3916
4024
410
420
4348
4432
450
4632
4748
484
490
500
5116
5224
530
540
5564
5632
570
580
5964
6016
610
6280
638
6452
650
660
6764
6840

[1,0,0,0,4,0,0,8,4,0,0,16,0,0,16,8,4,0,0,16,8,0,
 32,16,4,0,0,0,16,0,16,40,20,0,0,48,4,0,32,16,24,0,
 0,48,32,0,32,48,4,0,0,16,24,0,0,64,32,0,0,64,16,0,
 80,8,52,0,0,64,40]