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 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 6 |
| 6 | 13 |
| 7 | 35 |
| 8 | 92 |
| 9 | 220 |
| 10 | 484 |
| 11 | 1013 |
| 12 | 2092 |
| 13 | 4382 |
| 14 | 9404 |
| 15 | 20552 |
| 16 | 45185 |
| 17 | 99009 |
| 18 | 215481 |
| 19 | 466361 |
| 20 | 1006897 |
| 21 | 2174834 |
| 22 | 4705895 |
| 23 | 10200142 |
| 24 | 22128873 |
| 25 | 48009456 |
| 26 | 104111224 |
| 27 | 225655617 |
| 28 | 488945055 |
| 29 | 1059372394 |
| 30 | 2295532150 |
| 31 | 4974876116 |
| 32 | 10782658417 |
| 33 | 23371307904 |
| 34 | 50655960304 |