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 | 1025 |
| 2 | 59048 |
| 3 | 3626068 |
| 4 | 135967276 |
| 5 | 1509748675 |
| 6 | 14149342837 |
| 7 | 109522148350 |
| 8 | 649340249056 |
| 9 | 191730243526 |
| 10 | 45941644105613 |
| 11 | 6359301533362 |
| 12 | 24287026146320 |
| 13 | 265934493600922 |
| 14 | 927939012431924 |
| 15 | 1377672497815095 |
| 16 | 4440230734662684 |
| 17 | 10400007512898615 |
| 18 | 12198961352308417 |