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A213372 as a simple table

na(n)
12
24
32
46
52
64
78
84
96
102
1110
128
136
1412
154
162
178
1810
1914
204
216
222

[2,4,2,6,2,4,8,4,6,2,10,8,6,12,4,2,8,10,14,4,6,2]