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 | 2 |
| 3 | 7 |
| 4 | 11 |
| 5 | 29 |
| 6 | 81 |
| 7 | 155 |
| 8 | 312 |
| 9 | 708 |
| 10 | 1950 |
| 11 | 3384 |
| 12 | 7729 |
| 13 | 14929 |
| 14 | 32407 |
| 15 | 81708 |
| 16 | 151429 |
| 17 | 305899 |
| 18 | 623713 |
| 19 | 1234736 |
| 20 | 2463743 |
| 21 | 6208978 |
| 22 | 10732222 |
| 23 | 22487671 |
| 24 | 43000345 |
| 25 | 86573952 |
| 26 | 160595426 |
| 27 | 324990308 |
| 28 | 744946690 |
| 29 | 1336552491 |
| 30 | 2629260284 |
| 31 | 5050032692 |
| 32 | 9681365777 |