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 | 2 |
| 2 | 3 |
| 3 | 6 |
| 4 | 26 |
| 5 | 716 |
| 6 | 774 |
| 7 | 982 |
| 8 | 1324 |
| 9 | 4093 |
| 10 | 10322 |
| 11 | 20384 |
| 12 | 29421 |
| 13 | 134214 |
| 14 | 241864 |
| 15 | 308509 |
| 16 | 1025262 |
| 17 | 3880049 |
| 18 | 4830325 |
| 19 | 7233905 |
| 20 | 61579977 |
| 21 | 290741175 |
| 22 | 1321818238 |
| 23 | 1545233324 |
| 24 | 2515438449 |
| 25 | 8764063139 |