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A304539 as a simple table

na(n)
13
27
39
419
537
665
7129
8275
9555
101143
112417
125101
1310937
1423873
1552511
16116647
17261813
18592025
191347981
203088537
217111583
2216443119
2338153839
2488783305
25207079559
26483922933
271132625887
282654229335
296226282429
3014617442181

[3,7,9,19,37,65,129,275,555,1143,2417,5101,10937,
 23873,52511,116647,261813,592025,1347981,3088537,
 7111583,16443119,38153839,88783305,207079559,
 483922933,1132625887,2654229335,6226282429,
 14617442181]