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 | 331777 |
| 2 | 8503057 |
| 3 | 9834497 |
| 4 | 59969537 |
| 5 | 562448657 |
| 6 | 916636177 |
| 7 | 3208542737 |
| 8 | 3782742017 |
| 9 | 5006411537 |
| 10 | 7676563457 |
| 11 | 11574317057 |
| 12 | 19565295377 |
| 13 | 34188010001 |
| 14 | 38167092497 |
| 15 | 49632710657 |
| 16 | 56712564737 |
| 17 | 59553569297 |
| 18 | 61505984017 |
| 19 | 104086245377 |
| 20 | 114733948177 |