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 | 43098 |
| 3 | 20746664124 |
| 4 | 21531558370 |
| 5 | 25933330155 |
| 6 | 30519275171 |
| 7 | 453393100534 |
| 8 | 803844998180 |
| 9 | 1233758294601 |
| 10 | 2358796315843 |
| 11 | 6260406046762 |
| 12 | 7339897643091 |
| 13 | 7540242750903 |
| 14 | 8532869860592 |
| 15 | 11879890160946 |
| 16 | 17538398093508 |