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 | 28 |
| 2 | 784 |
| 3 | 4706 |
| 4 | 32358 |
| 5 | 274310 |
| 6 | 2439422 |
| 7 | 22743106 |
| 8 | 215653086 |
| 9 | 2074646042 |
| 10 | 20114457896 |
| 11 | 196177590320 |
| 12 | 1920586351234 |
| 13 | 18853910600730 |
| 14 | 185424150337748 |
| 15 | 1825959259691596 |
| 16 | 17996976017461980 |
| 17 | 177490351372413072 |