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 | 5 |
| 3 | 41 |
| 4 | 1023 |
| 5 | 67173 |
| 6 | 10771355 |
| 7 | 5957216417 |
| 8 | 6971880064072 |
| 9 | 32181855124938673 |
| 10 | 290910256437910060602 |
| 11 | 11266525980714327353251353 |
| 12 | 815201852317091835592374861144 |
| 13 | 266236010885685869904935495261864265 |
| 14 | 157899403462038839125137738939159318226008 |