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A280557 as a simple table

na(n)
14
26
313
415
523
625
731
871
9133
10333
11341
12905
131027
143667
157241
168217
178493
189816
1911842
2015454
2115891
2219117
2330424
2435196
2542808
2678408
2795641
28177466

[4,6,13,15,23,25,31,71,133,333,341,905,1027,3667,
 7241,8217,8493,9816,11842,15454,15891,19117,30424,
 35196,42808,78408,95641,177466]