A216093 - OEIS

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A216093 as a simple table

n	a(n)
1	5
2	75
3	375
4	9375
5	9375
6	109375
7	7109375
8	87109375
9	787109375
10	1787109375
11	81787109375
12	81787109375
13	81787109375
14	40081787109375
15	740081787109375
16	3740081787109375
17	43740081787109375
18	743740081787109375

[5,75,375,9375,9375,109375,7109375,87109375, 787109375,1787109375,81787109375,81787109375, 81787109375,40081787109375,740081787109375, 3740081787109375,43740081787109375, 743740081787109375]