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) |
|---|---|
| 0 | 1 |
| 1 | 93 |
| 2 | 4278 |
| 3 | 129766 |
| 4 | 2919735 |
| 5 | 51971283 |
| 6 | 762245484 |
| 7 | 9473622444 |
| 8 | 101841441273 |
| 9 | 961835834245 |
| 10 | 8079421007658 |
| 11 | 60962903966874 |
| 12 | 416579843773639 |
| 13 | 2595612872743443 |
| 14 | 14832073558533960 |
| 15 | 78115587408278856 |
| 16 | 380813488615359423 |
| 17 | 1724861095493098563 |