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 | 46 |
| 2 | 284 |
| 3 | 1633 |
| 4 | 149728 |
| 5 | 242656 |
| 6 | 260495 |
| 7 | 298057 |
| 8 | 1056752 |
| 9 | 9587584 |
| 10 | 17706256 |
| 11 | 914429696 |
| 12 | 985501822 |
| 13 | 1074266048 |
| 14 | 1484820224 |
| 15 | 4241800921 |
| 16 | 12147056128 |
| 17 | 109548719577 |
| 18 | 287291764736 |
| 19 | 360499817799 |