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 | 26 |
| 2 | 246 |
| 3 | 1442 |
| 4 | 6292 |
| 5 | 22374 |
| 6 | 68354 |
| 7 | 185614 |
| 8 | 458601 |
| 9 | 1048476 |
| 10 | 2246244 |
| 11 | 4553484 |
| 12 | 8801104 |
| 13 | 16319252 |
| 14 | 29174652 |
| 15 | 50495236 |
| 16 | 84906041 |
| 17 | 139104966 |
| 18 | 222612170 |
| 19 | 348732670 |
| 20 | 535778100 |
| 21 | 808600650 |
| 22 | 1200499950 |
| 23 | 1755572130 |
| 24 | 2531579505 |
| 25 | 3603429336 |
| 26 | 5067360936 |
| 27 | 7045952056 |