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 | 128 |
| 2 | 1791 |
| 3 | 12620 |
| 4 | 59406 |
| 5 | 214716 |
| 6 | 644040 |
| 7 | 1681860 |
| 8 | 3932472 |
| 9 | 8409252 |
| 10 | 16713576 |
| 11 | 31259100 |
| 12 | 55546440 |
| 13 | 94493292 |
| 14 | 154825032 |
| 15 | 245530836 |
| 16 | 378390360 |
| 17 | 568576020 |
| 18 | 835335912 |
| 19 | 1202762412 |
| 20 | 1700651496 |
| 21 | 2365457820 |
| 22 | 3241350600 |
| 23 | 4381375332 |