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 | 1 |
| 2 | 8 |
| 3 | 25 |
| 4 | 33 |
| 5 | 359 |
| 6 | 2948 |
| 7 | 3291 |
| 8 | 4959 |
| 9 | 22350 |
| 10 | 33357 |
| 11 | 60907 |
| 12 | 80962 |
| 13 | 8276347 |
| 14 | 11856980 |
| 15 | 15254419 |
| 16 | 176009996 |
| 17 | 967538242 |
| 18 | 1729774831 |
| 19 | 9977169279 |
| 20 | 193005936726 |