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A005306 as a simple table

na(n)
32
44
510
622
740
876
9138
10238
11408
12682
131112
141792
152844
164444
176872
1810510
1915896
2023834

[2,4,10,22,40,76,138,238,408,682,1112,1792,2844,
 4444,6872,10510,15896,23834]