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 | 3 |
| 2 | 3465253618399 |
| 3 | 374166120095639 |
| 4 | 12959269432331237 |
| 5 | 44202753561285409 |
| 6 | 1640293473202755797 |
| 7 | 1640293473202755799 |
| 8 | 10623546148468360249 |