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 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 5 |
| 5 | 7 |
| 6 | 12 |
| 7 | 17 |
| 8 | 30 |
| 9 | 44 |
| 10 | 79 |
| 11 | 120 |
| 12 | 218 |
| 13 | 341 |
| 14 | 625 |
| 15 | 1001 |
| 16 | 1848 |
| 17 | 3016 |
| 18 | 5603 |
| 19 | 9283 |
| 20 | 17342 |
| 21 | 29085 |
| 22 | 54606 |
| 23 | 92513 |
| 24 | 174456 |
| 25 | 298111 |
| 26 | 564333 |
| 27 | 971563 |
| 28 | 1845364 |
| 29 | 3198130 |
| 30 | 6092038 |
| 31 | 10621153 |
| 32 | 20282471 |
| 33 | 35554559 |
| 34 | 68042537 |
| 35 | 119874494 |
| 36 | 229840130 |
| 37 | 406794862 |
| 38 | 781246800 |
| 39 | 1388643835 |