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 | 1 |
| 2 | 8 |
| 3 | 36 |
| 4 | 124 |
| 5 | 367 |
| 6 | 988 |
| 7 | 2498 |
| 8 | 6048 |
| 9 | 14197 |
| 10 | 32576 |
| 11 | 73472 |
| 12 | 163508 |
| 13 | 360027 |
| 14 | 785908 |
| 15 | 1703294 |
| 16 | 3669240 |
| 17 | 7863393 |
| 18 | 16776120 |
| 19 | 35650300 |
| 20 | 75495980 |
| 21 | 159381831 |
| 22 | 335542348 |
| 23 | 704640826 |
| 24 | 1476392464 |
| 25 | 3087004877 |
| 26 | 6442447728 |
| 27 | 13421769208 |