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 | 235 |
| 3 | 5148 |
| 4 | 96956 |
| 5 | 1622015 |
| 6 | 25281625 |
| 7 | 375341540 |
| 8 | 5384233910 |
| 9 | 75321922433 |
| 10 | 1034169469257 |
| 11 | 13999362291892 |
| 12 | 187462552894846 |
| 13 | 2489361245031701 |
| 14 | 32843155609675341 |
| 15 | 431132757745615932 |
| 16 | 5637280548371484492 |
| 17 | 73484574453020315121 |
| 18 | 955615821857238062353 |
| 19 | 12403944194214668554202 |