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 | 5 |
| 3 | 13 |
| 4 | 42 |
| 5 | 49 |
| 6 | 105 |
| 7 | 116 |
| 8 | 498 |
| 9 | 254 |
| 10 | 381 |
| 11 | 378 |
| 12 | 1402 |
| 13 | 550 |
| 14 | 929 |
| 15 | 1383 |
| 16 | 3110 |
| 17 | 1041 |
| 18 | 2530 |
| 19 | 1486 |
| 20 | 5386 |
| 21 | 3512 |
| 22 | 2952 |
| 23 | 2120 |
| 24 | 24770 |