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 | 4 |
| 1 | 14 |
| 2 | 194 |
| 3 | 37634 |
| 4 | 7031978 |
| 5 | 7033660 |
| 6 | 1176429 |
| 7 | 7643358 |
| 8 | 3179743 |
| 9 | 2694768 |
| 10 | 763525 |
| 11 | 4182158 |
| 12 | 7004001 |
| 13 | 1531454 |
| 14 | 5888805 |
| 15 | 1140622 |
| 16 | 4321431 |
| 17 | 7041324 |
| 18 | 2756392 |
| 19 | 1280050 |
| 20 | 6563009 |
| 21 | 6107895 |