This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 16 |
| 2 | 161 |
| 3 | 1618 |
| 4 | 16180 |
| 5 | 161803 |
| 6 | 1618033 |
| 7 | 16180339 |
| 8 | 161803398 |
| 9 | 1618033988 |
| 10 | 16180339887 |
| 11 | 161803398874 |
| 12 | 1618033988749 |
| 13 | 16180339887498 |
| 14 | 161803398874989 |
| 15 | 1618033988749894 |
| 16 | 16180339887498948 |
| 17 | 161803398874989484 |
| 18 | 1618033988749894848 |
| 19 | 16180339887498948482 |