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 | 2 |
| 2 | 17 |
| 3 | 1297 |
| 4 | 1336337 |
| 5 | 4477457 |
| 6 | 29986577 |
| 7 | 45212177 |
| 8 | 126247697 |
| 9 | 193877777 |
| 10 | 406586897 |
| 11 | 562448657 |
| 12 | 916636177 |
| 13 | 1416468497 |
| 14 | 1944810001 |
| 15 | 3208542737 |
| 16 | 4162314257 |
| 17 | 5006411537 |
| 18 | 5972816657 |
| 19 | 12444741137 |
| 20 | 19565295377 |
| 21 | 34188010001 |
| 22 | 38167092497 |
| 23 | 47156728337 |
| 24 | 59553569297 |
| 25 | 61505984017 |