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A231397 as a simple table

na(n)
13
27
314
433
578
6189
7482
81225
93238
108565
1123114
1262657
13171342
14470573
151297330
163586745
179934454
1827559269
1976525210
20212662577
21591289630
221644693789
234576035586
2412734509097
2535443628358
2698659578197
27274645954794

[3,7,14,33,78,189,482,1225,3238,8565,23114,62657,
 171342,470573,1297330,3586745,9934454,27559269,
 76525210,212662577,591289630,1644693789,
 4576035586,12734509097,35443628358,98659578197,
 274645954794]