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 | 152 |
| 2 | 284 |
| 3 | 4316 |
| 4 | 18632 |
| 5 | 25484 |
| 6 | 2657259 |
| 7 | 8394752 |
| 8 | 12186976 |
| 9 | 17702756 |
| 10 | 1172473731 |
| 11 | 2147581952 |
| 12 | 13716855652 |
| 13 | 63831498112 |