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A130702 as a simple table

na(n)
14
28
312
416
518
620
722
824
928
1030
1132
1236
1340
1442
1544
1648
1752
1854
1956
2060
2164
2266
2372

[4,8,12,16,18,20,22,24,28,30,32,36,40,42,44,48,52,
 54,56,60,64,66,72]