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 | 13 |
| 2 | 37 |
| 3 | 67 |
| 4 | 193 |
| 5 | 457 |
| 6 | 613 |
| 7 | 823 |
| 8 | 2377 |
| 9 | 2683 |
| 10 | 3163 |
| 11 | 3847 |
| 12 | 5227 |
| 13 | 6547 |
| 14 | 10267 |
| 15 | 15643 |
| 16 | 25303 |
| 17 | 47143 |
| 18 | 54493 |