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A034172 as a simple table

na(n)
01
11
23
313
475
5541
64683
747293
8545835
97087261
10102247563
111622632573
1228091567595
13526858348381
1410641342970443
15230283190977853
165315654681981355
17130370767029135900
183385534663256845326

[1,1,3,13,75,541,4683,47293,545835,7087261,
 102247563,1622632573,28091567595,526858348381,
 10641342970443,230283190977853,5315654681981355,
 130370767029135900,3385534663256845326]