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 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 3 |
| 5 | 5 |
| 6 | 9 |
| 7 | 16 |
| 8 | 27 |
| 9 | 46 |
| 10 | 76 |
| 11 | 130 |
| 12 | 203 |
| 13 | 350 |
| 14 | 554 |
| 15 | 890 |
| 16 | 1474 |
| 17 | 2285 |
| 18 | 3732 |
| 19 | 5852 |
| 20 | 9297 |
| 21 | 14628 |
| 22 | 22936 |
| 23 | 35903 |
| 24 | 55893 |
| 25 | 86967 |
| 26 | 134585 |
| 27 | 207934 |
| 28 | 321122 |
| 29 | 492634 |
| 30 | 757490 |