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 | 1 |
| 1 | 61 |
| 2 | 853 |
| 3 | 5577 |
| 4 | 23673 |
| 5 | 76389 |
| 6 | 204205 |
| 7 | 476113 |
| 8 | 1000753 |
| 9 | 1939405 |
| 10 | 3520837 |
| 11 | 6058009 |
| 12 | 9966633 |
| 13 | 15785589 |
| 14 | 24199197 |
| 15 | 36061345 |
| 16 | 52421473 |
| 17 | 74552413 |
| 18 | 103980085 |
| 19 | 142515049 |
| 20 | 192285913 |
| 21 | 255774597 |
| 22 | 335853453 |