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 | 9 |
| 6 | 18 |
| 7 | 32 |
| 8 | 56 |
| 9 | 111 |
| 10 | 211 |
| 11 | 386 |
| 12 | 727 |
| 13 | 1374 |
| 14 | 2654 |
| 15 | 5018 |
| 16 | 9346 |
| 17 | 17946 |
| 18 | 33654 |
| 19 | 63754 |
| 20 | 120619 |
| 21 | 229835 |
| 22 | 443058 |
| 23 | 834608 |
| 24 | 1563645 |
| 25 | 2999088 |
| 26 | 5843122 |
| 27 | 11070802 |
| 28 | 21253933 |
| 29 | 41347141 |
| 30 | 79197559 |
| 31 | 153735211 |
| 32 | 293761934 |
| 33 | 570421574 |
| 34 | 1112023166 |
| 35 | 2153293449 |