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A066559 as a simple table

na(n)
11
25
334
4250
52000
616667
7142858
81250000
911111112
10100000000
11909090910
128333333334
1376923076924
14714285714286
156666666666667
1662500000000000
17588235294117648
185555555555555556
1952631578947368422
20500000000000000000

[1,5,34,250,2000,16667,142858,1250000,11111112,
 100000000,909090910,8333333334,76923076924,
 714285714286,6666666666667,62500000000000,
 588235294117648,5555555555555556,
 52631578947368422,500000000000000000]