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 | 3 |
| 4 | 5 |
| 5 | 8 |
| 6 | 16 |
| 7 | 31 |
| 8 | 52 |
| 9 | 98 |
| 10 | 179 |
| 11 | 323 |
| 12 | 590 |
| 13 | 1078 |
| 14 | 1945 |
| 15 | 3531 |
| 16 | 6421 |
| 17 | 11621 |
| 18 | 21041 |
| 19 | 38116 |
| 20 | 68904 |
| 21 | 124562 |
| 22 | 225138 |
| 23 | 406513 |
| 24 | 733710 |
| 25 | 1323803 |