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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 14 |
| 3 | 141 |
| 4 | 1415 |
| 5 | 14159 |
| 6 | 141592 |
| 7 | 1415926 |
| 8 | 14159265 |
| 9 | 141592653 |
| 10 | 1415926535 |
| 11 | 14159265358 |
| 12 | 141592653589 |
| 13 | 1415926535897 |
| 14 | 14159265358979 |
| 15 | 141592653589793 |
| 16 | 1415926535897932 |
| 17 | 14159265358979323 |
| 18 | 141592653589793238 |
[1,14,141,1415,14159,141592,1415926,14159265, 141592653,1415926535,14159265358,141592653589, 1415926535897,14159265358979,141592653589793, 1415926535897932,14159265358979323, 141592653589793238] |