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A167874 as a simple table

na(n)
13
215
369
4409
52447
616337
7117959
8880623
96849011
1054825357
11448752095
123741170439
1331669329743
14271560643329
152354418484607
1620608371394595
17181897678706317
181617351777154871

[3,15,69,409,2447,16337,117959,880623,6849011,
 54825357,448752095,3741170439,31669329743,
 271560643329,2354418484607,20608371394595,
 181897678706317,1617351777154871]