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 | 42 |
| 2 | 1029 |
| 3 | 19208 |
| 4 | 302526 |
| 5 | 4235364 |
| 6 | 54353838 |
| 7 | 652246056 |
| 8 | 7419298887 |
| 9 | 80787921214 |
| 10 | 848273172747 |
| 11 | 8636963213424 |
| 12 | 85649885199788 |
| 13 | 830145041167176 |
| 14 | 7886377891088172 |
| 15 | 73606193650156272 |
| 16 | 676256904160810749 |
| 17 | 6126091955339109138 |
| 18 | 54794489156088698401 |
| 19 | 484498640959100070072 |