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 | 10 |
| 2 | 19 |
| 3 | 39 |
| 4 | 181 |
| 5 | 493 |
| 6 | 941 |
| 7 | 2454 |
| 8 | 16111 |
| 9 | 30730 |
| 10 | 416488 |
| 11 | 1433896 |
| 12 | 1663074 |