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 | 0 |
| 2 | 1 |
| 3 | 4 |
| 4 | 5 |
| 5 | 8 |
| 6 | 10 |
| 7 | 25 |
| 8 | 49 |
| 9 | 76 |
| 10 | 128 |
| 11 | 175 |
| 12 | 238 |
| 13 | 550 |
| 14 | 796 |
| 15 | 1219 |
| 16 | 2012 |
| 17 | 2846 |
| 18 | 11336 |
| 19 | 21296 |
| 20 | 49808 |
| 21 | 74318 |
| 22 | 236891 |
| 23 | 608989 |
| 24 | 1652593 |
| 25 | 1715905 |
| 26 | 1990324 |
| 27 | 2045966 |
| 28 | 2084563 |
| 29 | 5112847 |