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 | 19 |
| 3 | 93 |
| 4 | 334 |
| 5 | 841 |
| 6 | 3404 |
| 7 | 7271 |
| 8 | 7720 |
| 9 | 44152 |
| 10 | 406774 |
| 11 | 993948 |
| 12 | 2421339 |
| 13 | 8786439 |
| 14 | 11387707 |
| 15 | 93548200 |