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 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 6 |
| 6 | 11 |
| 7 | 106 |
| 8 | 616 |
| 9 | 990 |
| 10 | 1232 |
| 11 | 1276 |
| 12 | 1534 |
| 13 | 3494 |
| 14 | 8140 |
| 15 | 43054 |
| 16 | 52634 |
| 17 | 97691 |
| 18 | 99280 |
| 19 | 131846 |
| 20 | 136006 |
| 21 | 355877 |
| 22 | 617749 |
| 23 | 824703 |
| 24 | 2115058 |
| 25 | 3011987 |