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 | 8 |
| 2 | 170 |
| 3 | 2242 |
| 4 | 2132 |
| 5 | 1294 |
| 6 | 976846 |
| 7 | 216566 |
| 8 | 9904144 |
| 9 | 25617930 |
| 10 | 408928520 |
| 11 | 25346031262 |
| 12 | 137031675878 |
| 13 | 89950978114 |