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A232117 as a simple table

na(n)
115
2109
3611
43635
521717
6129323
7770747
84593729
927378111
10163172235
11972498865
125796045587
1334544152883
14205881488613
151227043758875
167313121735911
1743585853505657
18259769588739759
191548214244035995

[15,109,611,3635,21717,129323,770747,4593729,
 27378111,163172235,972498865,5796045587,
 34544152883,205881488613,1227043758875,
 7313121735911,43585853505657,259769588739759,
 1548214244035995]