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A280652 as a simple table

na(n)
10
20
30
40
54
68
70
812
916
1020
110
1218
1332
1436
1536
160
1724
1848
1956
2060
2172
220
2330
2462
2576
2684
2788
28104
290
3036
3176
32104
33112
34120
35132
36140
370
3842
3986
40130
41136
42152
43160
44184
45180
460
4748
48100
49144
50180
51184
52192
53216
54232
55240
560
5754
58110
59166
60210
61228
62232

[0,0,0,0,4,8,0,12,16,20,0,18,32,36,36,0,24,48,56,
 60,72,0,30,62,76,84,88,104,0,36,76,104,112,120,
 132,140,0,42,86,130,136,152,160,184,180,0,48,100,
 144,180,184,192,216,232,240,0,54,110,166,210,228,
 232]