| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 10 |
| 3 | 100 |
| 4 | 1000 |
| 5 | 10000 |
| 6 | 100000 |
| 7 | 1000000 |
| 8 | 10000000 |
| 9 | 100000000 |
| 10 | 612579511 |
| 11 | 5738374621 |
| 12 | 53509541320 |
| 13 | 496353364300 |
| 14 | 4576113154000 |
| 15 | 41886926650000 |
| 16 | 380127217600000 |
| 17 | 3413851687000000 |
| 18 | 30264311980000000 |
| 19 | 263901070900000000 |
| 20 | 2401684855296999121 |
| 21 | 21793684651236981541 |
| 22 | 197206153848009709930 |
[1,10,100,1000,10000,100000,1000000,10000000, 100000000,612579511,5738374621,53509541320, 496353364300,4576113154000,41886926650000, 380127217600000,3413851687000000, 30264311980000000,263901070900000000, 2401684855296999121,21793684651236981541, 197206153848009709930] |