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A309094 as a simple table

na(n)
12
22
36
46
520
616
74
846
98
10136
1136
12402
13102
141186
15334
1614
17988
1862

[2,2,6,6,20,16,4,46,8,136,36,402,102,1186,334,14,
 988,62]