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) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 10 |
| 4 | 75 |
| 5 | 100 |
| 6 | 750 |
| 7 | 1000 |
| 8 | 4217 |
| 9 | 7499 |
| 10 | 10000 |
| 11 | 100000 |
| 12 | 177828 |
| 13 | 1000000 |
| 14 | 10000000 |
| 15 | 74989421 |
| 16 | 100000000 |
| 17 | 1000000000 |
| 18 | 5623413252 |
| 19 | 10000000000 |
| 20 | 100000000000 |
| 21 | 177827941004 |
| 22 | 1000000000000 |
| 23 | 1778279410039 |
| 24 | 10000000000000 |
| 25 | 56234132519035 |
| 26 | 100000000000000 |