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 | 4 |
| 4 | 7 |
| 5 | 14 |
| 6 | 21 |
| 7 | 54 |
| 8 | 73 |
| 9 | 187 |
| 10 | 345 |
| 11 | 768 |
| 12 | 955 |
| 13 | 4989 |
| 14 | 5620 |
| 15 | 12347 |
| 16 | 30326 |
| 17 | 84807 |
| 18 | 92518 |
| 19 | 544421 |
| 20 | 572016 |
| 21 | 2390850 |
| 22 | 3811427 |
| 23 | 6182184 |
| 24 | 6546907 |