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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

A093143 as a simple table

na(n)
01
15
250
3500
45000
550000
6500000
75000000
850000000
9500000000
105000000000
1150000000000
12500000000000
135000000000000
1450000000000000
15500000000000000
165000000000000000
1750000000000000000
18500000000000000000
195000000000000000000
2050000000000000000000
21500000000000000000000

[1,5,50,500,5000,50000,500000,5000000,50000000,
 500000000,5000000000,50000000000,500000000000,
 5000000000000,50000000000000,500000000000000,
 5000000000000000,50000000000000000,
 500000000000000000,5000000000000000000,
 50000000000000000000,500000000000000000000]