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 | 1 |
| 4 | 2 |
| 5 | 3 |
| 6 | 6 |
| 7 | 10 |
| 8 | 21 |
| 9 | 42 |
| 10 | 94 |
| 11 | 204 |
| 12 | 473 |
| 13 | 1098 |
| 14 | 2633 |
| 15 | 6353 |
| 16 | 15641 |
| 17 | 38789 |
| 18 | 97416 |
| 19 | 246410 |
| 20 | 628726 |
| 21 | 1614292 |
| 22 | 4171955 |
| 23 | 10839366 |
| 24 | 28308678 |
| 25 | 74266477 |
| 26 | 195667533 |
| 27 | 517504253 |
| 28 | 1373640355 |
| 29 | 3658205088 |
| 30 | 9772510063 |
| 31 | 26181295237 |
| 32 | 70330621171 |