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 | 1 |
| 2 | 27 |
| 3 | 86 |
| 4 | 111 |
| 5 | 272 |
| 6 | 547 |
| 7 | 608 |
| 8 | 687 |
| 9 | 808 |
| 10 | 929 |
| 11 | 3890 |
| 12 | 5557 |
| 13 | 7180 |
| 14 | 21659 |
| 15 | 21663 |
| 16 | 60486 |
| 17 | 71074 |
| 18 | 279428 |
| 19 | 603224 |
| 20 | 603228 |
| 21 | 610798 |
| 22 | 710551 |
| 23 | 811026 |
| 24 | 930320 |