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 | 4 |
| 2 | 18 |
| 3 | 100 |
| 4 | 121 |
| 5 | 244 |
| 6 | 546 |
| 7 | 631 |
| 8 | 1494 |
| 9 | 2566 |
| 10 | 8088 |
| 11 | 262603 |
| 12 | 282948 |
| 13 | 359860 |