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 | 2 |
| 5 | 2 |
| 6 | 6 |
| 7 | 7 |
| 8 | 11 |
| 9 | 17 |
| 10 | 30 |
| 11 | 40 |
| 12 | 73 |
| 13 | 109 |
| 14 | 165 |
| 15 | 269 |
| 16 | 441 |
| 17 | 675 |
| 18 | 1076 |
| 19 | 1671 |
| 20 | 2699 |
| 21 | 4256 |
| 22 | 6726 |
| 23 | 10585 |
| 24 | 16969 |
| 25 | 26524 |
| 26 | 42386 |
| 27 | 66979 |