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 | 2 |
| 2 | 3 |
| 3 | 11 |
| 4 | 14 |
| 5 | 39 |
| 6 | 326 |
| 7 | 691 |
| 8 | 1017 |
| 9 | 3742 |
| 10 | 4759 |
| 11 | 13260 |
| 12 | 110839 |
| 13 | 234938 |
| 14 | 345777 |
| 15 | 1272269 |
| 16 | 1618046 |
| 17 | 4508361 |
| 18 | 37684934 |
| 19 | 79878229 |
| 20 | 117563163 |
| 21 | 432567718 |
| 22 | 550130881 |
| 23 | 1532829480 |
| 24 | 12812766721 |
| 25 | 27158362922 |