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 | 3 |
| 2 | 26 |
| 3 | 264 |
| 4 | 313 |
| 5 | 3114 |
| 6 | 3114113 |
| 7 | 278922387 |
| 8 | 881361264 |
| 9 | 2603208937 |
| 10 | 3125343176 |
| 11 | 312518799063 |
| 12 | 2770739969214 |
| 13 | 8366461419063 |
| 14 | 260723947264113 |
| 15 | 9831977256725526 |