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A097114 as a simple table

na(n)
01
18
257
3400
43193
520000
6176457
71000000
89646393
950000000
10522673257
112500000000
1228110989593
13125000000000
141502438490057
156250000000000
1679869486012793
17312500000000000
184226104814626857
1915625000000000000

[1,8,57,400,3193,20000,176457,1000000,9646393,
 50000000,522673257,2500000000,28110989593,
 125000000000,1502438490057,6250000000000,
 79869486012793,312500000000000,4226104814626857,
 15625000000000000]