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A097786 as a simple table

na(n)
01
17
231
3113
4374
51178
63618
710974
833087
999481
10298729
11896551
122690108
138070884
1424213332
1572640812
16217923405
17653771355
181961315395
195883947725
2017651844946
2152955536862
22158866612886
23476599841258
241429799526699

[1,7,31,113,374,1178,3618,10974,33087,99481,
 298729,896551,2690108,8070884,24213332,72640812,
 217923405,653771355,1961315395,5883947725,
 17651844946,52955536862,158866612886,476599841258,
 1429799526699]