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A285999 as a simple table

na(n)
10
20
32
42
54
64
76
86
98
1010
1112
1212
1314
1416
1518
1618
1720
1822
1924
2024
2128
2230
2332
2432
2534
2636
2740
2840
2942
3044
3146
3246
3350
3452
3554
3656
3758
3860
3964
4064
4166
4268
4370
4472
4576
4678
4780
4880
4982
5084
5188
5290
5392
5494
5598
5698
57102
58104
59106
60108
61110
62112
63116
64116
65120
66122
67124
68126
69130
70132
71134
72134
73136
74138
75144
76146
77148
78152

[0,0,2,2,4,4,6,6,8,10,12,12,14,16,18,18,20,22,24,
 24,28,30,32,32,34,36,40,40,42,44,46,46,50,52,54,
 56,58,60,64,64,66,68,70,72,76,78,80,80,82,84,88,
 90,92,94,98,98,102,104,106,108,110,112,116,116,
 120,122,124,126,130,132,134,134,136,138,144,146,
 148,152]