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A359690 as a simple table

na(n)
15
213
369
4289
51971
63997
720371
845751
9120957
10205299
11629847
12897801
132334409
143461459
155517131
168468061

[5,13,69,289,1971,3997,20371,45751,120957,205299,
 629847,897801,2334409,3461459,5517131,8468061]