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 | 6 |
| 2 | 10 |
| 3 | 46 |
| 4 | 366 |
| 5 | 1246 |
| 6 | 2038 |
| 7 | 4386 |
| 8 | 4438 |
| 9 | 6838 |
| 10 | 7498 |
| 11 | 7998 |
| 12 | 9450 |
| 13 | 11890 |
| 14 | 17034 |
| 15 | 23290 |
| 16 | 73338 |
| 17 | 149146 |
| 18 | 323638 |
| 19 | 853546 |
| 20 | 2206266 |
| 21 | 6833086 |