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A242848 as a simple table

na(n)
20
30
40
52
60
72
80
90
104
114
120
134
144
156
160
176
180
196
208
216
228
238
240
2516
268
270
288
2910
3012
3110
320
3312
3412
3532
360
3712
3812
3912
4016
4114
4212
4314
4416
4518
4616
4716
480
4928
5032
5118
5216
5318
540
5554
5616
5718
5820
5920
6024
6120
6220
6318
640
6562
6624
6722
6824
6924
7064
7124
720
7324
7424

[0,0,0,2,0,2,0,0,4,4,0,4,4,6,0,6,0,6,8,6,8,8,0,16,
 8,0,8,10,12,10,0,12,12,32,0,12,12,12,16,14,12,14,
 16,18,16,16,0,28,32,18,16,18,0,54,16,18,20,20,24,
 20,20,18,0,62,24,22,24,24,64,24,0,24,24]