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) |
|---|---|
| 0 | 879 |
| 1 | 1857 |
| 2 | 9438 |
| 3 | 17787 |
| 4 | 96558 |
| 5 | 182127 |
| 6 | 903408 |
| 7 | 1707717 |
| 8 | 8884788 |
| 9 | 17759676 |
| 10 | 85455447 |
| 11 | 159910905 |
| 12 | 668930856 |
| 13 | 1326970722 |
| 14 | 3597766953 |
| 15 | 7194444906 |
| 16 | 13288889823 |
| 17 | 46187778054 |
| 18 | 91275556218 |
| 19 | 172541113437 |
| 20 | 906852258708 |