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 | 11 |
| 2 | 179 |
| 3 | 1931 |
| 4 | 617669101316651 |
| 5 | 14130386090585813000157964091 |
| 6 | 19088056323407826758511836230558252318494847619 |