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 | 148 |
| 2 | 4102 |
| 3 | 40182 |
| 4 | 240829 |
| 5 | 1122522 |
| 6 | 4480391 |
| 7 | 15921905 |
| 8 | 51343083 |
| 9 | 152072846 |
| 10 | 417672794 |
| 11 | 1072431538 |
| 12 | 2592681873 |
| 13 | 5938784236 |
| 14 | 12959932409 |
| 15 | 27074244297 |
| 16 | 54373767111 |
| 17 | 105367428574 |
| 18 | 197658533498 |
| 19 | 359961664018 |
| 20 | 638001956409 |
| 21 | 1103013543592 |
| 22 | 1863770039953 |
| 23 | 3083345640329 |