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 | 127 |
| 3 | 1093 |
| 4 | 8128 |
| 5 | 19531 |
| 6 | 138811 |
| 7 | 137257 |
| 8 | 520192 |
| 9 | 796797 |
| 10 | 2480437 |
| 11 | 1948717 |
| 12 | 8883904 |
| 13 | 5229043 |
| 14 | 17431639 |
| 15 | 21347383 |
| 16 | 33292288 |
| 17 | 25646167 |
| 18 | 101193219 |
| 19 | 49659541 |
| 20 | 158747968 |
| 21 | 150021901 |
| 22 | 247487059 |
| 23 | 154764793 |
| 24 | 568569856 |
| 25 | 305171875 |
| 26 | 664088461 |
| 27 | 580865013 |
| 28 | 1115624896 |