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 | 3 |
| 3 | 11 |
| 4 | 16 |
| 5 | 48 |
| 6 | 480 |
| 7 | 947 |
| 8 | 1111 |
| 9 | 1137 |
| 10 | 1367 |
| 11 | 2125 |
| 12 | 6351 |
| 13 | 6841 |
| 14 | 8209 |
| 15 | 11392 |
| 16 | 32931 |
| 17 | 166413 |
| 18 | 173904 |
| 19 | 263547 |
| 20 | 284047 |
| 21 | 634832 |
| 22 | 690589 |
| 23 | 2495931 |
| 24 | 6696245 |
| 25 | 7004640 |