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 | 54 |
| 2 | 2916 |
| 3 | 63575 |
| 4 | 1286120 |
| 5 | 22015314 |
| 6 | 359696109 |
| 7 | 5593606875 |
| 8 | 85072486586 |
| 9 | 1270511986433 |
| 10 | 18779814902475 |
| 11 | 275479123825628 |
| 12 | 4021463733992753 |
| 13 | 58503148106709186 |
| 14 | 849117447746208056 |
| 15 | 12303966393066654445 |