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 | 0 |
| 1 | 3 |
| 2 | 3 |
| 3 | 6 |
| 4 | 9 |
| 5 | 15 |
| 6 | 25 |
| 7 | 40 |
| 8 | 65 |
| 9 | 106 |
| 10 | 172 |
| 11 | 279 |
| 12 | 452 |
| 13 | 731 |
| 14 | 1184 |
| 15 | 1916 |
| 16 | 3100 |
| 17 | 5017 |
| 18 | 8117 |
| 19 | 13134 |
| 20 | 21252 |
| 21 | 34387 |
| 22 | 55640 |
| 23 | 90028 |
| 24 | 145669 |
| 25 | 235697 |
| 26 | 381367 |
| 27 | 617065 |
| 28 | 998432 |
| 29 | 1615498 |
| 30 | 2613930 |
| 31 | 4229428 |
| 32 | 6843359 |
| 33 | 11072788 |
| 34 | 17916147 |
| 35 | 28988936 |
| 36 | 46905084 |
| 37 | 75894020 |
| 38 | 122799104 |