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 | 6 |
| 1 | 119 |
| 2 | 2279 |
| 3 | 18042 |
| 4 | 83921 |
| 5 | 284428 |
| 6 | 782795 |
| 7 | 1859374 |
| 8 | 3957717 |
| 9 | 7738336 |
| 10 | 14140143 |
| 11 | 24449570 |
| 12 | 40377369 |
| 13 | 64143092 |
| 14 | 98567251 |
| 15 | 147171158 |
| 16 | 214284445 |
| 17 | 305160264 |
| 18 | 426098167 |
| 19 | 584574666 |
| 20 | 789381473 |
| 21 | 1050771420 |