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 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 2 |
| 8 | 3 |
| 9 | 5 |
| 10 | 8 |
| 11 | 14 |
| 12 | 23 |
| 13 | 40 |
| 14 | 69 |
| 15 | 122 |
| 16 | 215 |
| 17 | 382 |
| 18 | 679 |
| 19 | 1217 |
| 20 | 2185 |
| 21 | 3944 |
| 22 | 7136 |
| 23 | 12958 |
| 24 | 23578 |
| 25 | 43026 |
| 26 | 78673 |
| 27 | 144190 |
| 28 | 264755 |
| 29 | 487074 |
| 30 | 897549 |
| 31 | 1656697 |
| 32 | 3062423 |
| 33 | 5669110 |
| 34 | 10508397 |
| 35 | 19503447 |
| 36 | 36240898 |
| 37 | 67418514 |
| 38 | 125551221 |
| 39 | 234047825 |
| 40 | 436722486 |