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 | 51 |
| 2 | 2089 |
| 3 | 70795 |
| 4 | 2360544 |
| 5 | 79562696 |
| 6 | 2506281752 |
| 7 | 69684770828 |
| 8 | 1689884963173 |
| 9 | 36045826631067 |
| 10 | 685286426542689 |
| 11 | 11759467817079518 |
| 12 | 184109136699624075 |
| 13 | 2653459164462630395 |
| 14 | 35466423366457631706 |
| 15 | 442375217765486649151 |