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 | 2 |
| 3 | 5 |
| 4 | 10 |
| 5 | 23 |
| 6 | 44 |
| 7 | 99 |
| 8 | 188 |
| 9 | 421 |
| 10 | 798 |
| 11 | 1785 |
| 12 | 3382 |
| 13 | 7563 |
| 14 | 14328 |
| 15 | 32039 |
| 16 | 60696 |
| 17 | 135721 |
| 18 | 257114 |
| 19 | 574925 |
| 20 | 1089154 |
| 21 | 2435423 |
| 22 | 4613732 |
| 23 | 10316619 |
| 24 | 19544084 |
| 25 | 43701901 |
| 26 | 82790070 |
| 27 | 185124225 |
| 28 | 350704366 |
| 29 | 784198803 |
| 30 | 1485607536 |
| 31 | 3321919439 |
| 32 | 6293134512 |
| 33 | 14071876561 |