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 | 17 |
| 2 | 1277 |
| 3 | 113147 |
| 4 | 2580647 |
| 5 | 20737877 |
| 6 | 171958667 |
| 7 | 311725847 |
| 8 | 408936947 |
| 9 | 701679047 |
| 10 | 1804302107 |
| 11 | 4955335367 |
| 12 | 7449267797 |
| 13 | 14005112897 |
| 14 | 22741837817 |
| 15 | 52998494597 |
| 16 | 61033681757 |
| 17 | 74325366107 |
| 18 | 78271296197 |
| 19 | 90479441177 |
| 20 | 218018750687 |
| 21 | 236874793697 |
| 22 | 560125662977 |
| 23 | 657582657857 |