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 | 8 |
| 2 | 1 |
| 3 | 7 |
| 4 | 5 |
| 5 | 8 |
| 6 | 40 |
| 7 | 96 |
| 8 | 316 |
| 9 | 1078 |
| 10 | 3831 |
| 11 | 13331 |
| 12 | 46127 |
| 13 | 161362 |
| 14 | 564617 |
| 15 | 1975369 |
| 16 | 6914911 |
| 17 | 24216868 |
| 18 | 84826850 |
| 19 | 297130258 |
| 20 | 1040826424 |
| 21 | 3646117344 |
| 22 | 12772898193 |
| 23 | 44745724111 |
| 24 | 156753135377 |
| 25 | 549139791596 |
| 26 | 1923758528089 |
| 27 | 6739359943131 |