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 | 23 |
| 2 | 278 |
| 3 | 3331 |
| 4 | 37987 |
| 5 | 421450 |
| 6 | 4583103 |
| 7 | 49084071 |
| 8 | 519385102 |
| 9 | 5442503771 |
| 10 | 56571775611 |
| 11 | 584048456162 |
| 12 | 5994862809815 |
| 13 | 61225907059807 |
| 14 | 622579765715526 |
| 15 | 6306473266306611 |
| 16 | 63664757730483923 |
| 17 | 640753995659371194 |