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) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 5 |
| 5 | 8 |
| 6 | 13 |
| 7 | 22 |
| 8 | 39 |
| 9 | 72 |
| 10 | 137 |
| 11 | 266 |
| 12 | 523 |
| 13 | 1036 |
| 14 | 2061 |
| 15 | 4110 |
| 16 | 8207 |
| 17 | 16400 |
| 18 | 32785 |
| 19 | 65554 |
| 20 | 131091 |
| 21 | 262164 |
| 22 | 524309 |
| 23 | 1048598 |
| 24 | 2097175 |
| 25 | 4194328 |
| 26 | 8388633 |
| 27 | 16777242 |