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) |
|---|---|
| 4 | 3 |
| 5 | 9 |
| 6 | 24 |
| 7 | 51 |
| 8 | 111 |
| 9 | 213 |
| 10 | 414 |
| 11 | 756 |
| 12 | 1374 |
| 13 | 2409 |
| 14 | 4206 |
| 15 | 7152 |
| 16 | 12096 |
| 17 | 20109 |
| 18 | 33198 |
| 19 | 54111 |
| 20 | 87648 |
| 21 | 140520 |
| 22 | 223953 |
| 23 | 354006 |
| 24 | 556419 |
| 25 | 868584 |
| 26 | 1348857 |
| 27 | 2082225 |
| 28 | 3198927 |
| 29 | 4888944 |
| 30 | 7438548 |
| 31 | 11265141 |
| 32 | 16990077 |
| 33 | 25516401 |
| 34 | 38175240 |
| 35 | 56894490 |
| 36 | 84490935 |
| 37 | 125028489 |
| 38 | 184400952 |