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A251700 as a simple table

na(n)
01
19
21700
3700000
4451770000
5399077600000
6448380625000000
7612032839680000000
8983672470878500000000
91819783935144064000000000
103809045473682732010000000000
118900000000000000000000000000000
1222963427643543537169897000000000000
1364847222511564256853913600000000000000

[1,9,1700,700000,451770000,399077600000,
 448380625000000,612032839680000000,
 983672470878500000000,1819783935144064000000000,
 3809045473682732010000000000,
 8900000000000000000000000000000,
 22963427643543537169897000000000000,
 64847222511564256853913600000000000000]