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 | 1 |
| 3 | 1 |
| 4 | 5 |
| 5 | 8 |
| 6 | 13 |
| 7 | 21 |
| 8 | 34 |
| 9 | 149 |
| 10 | 274 |
| 11 | 504 |
| 12 | 927 |
| 13 | 1705 |
| 14 | 3136 |
| 15 | 5768 |
| 16 | 20569 |
| 17 | 39648 |
| 18 | 76424 |
| 19 | 147312 |
| 20 | 283953 |
| 21 | 547337 |
| 22 | 1055026 |
| 23 | 2033628 |
| 24 | 3919944 |
| 25 | 11749641 |
| 26 | 23099186 |
| 27 | 45411804 |
| 28 | 89277256 |
| 29 | 175514464 |
| 30 | 345052351 |
| 31 | 678355061 |
| 32 | 1333610936 |
| 33 | 2621810068 |
| 34 | 5154342880 |
| 35 | 10133171296 |