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 | 63 |
| 3 | 173 |
| 4 | 1414 |
| 5 | 17313 |
| 6 | 53937 |
| 7 | 138923 |
| 8 | 953937 |
| 9 | 3082207 |
| 10 | 31622764 |
| 11 | 99849687 |
| 12 | 301579177 |
| 13 | 3033150173 |
| 14 | 14142134563 |
| 15 | 141413973847 |
| 16 | 543315746063 |
| 17 | 3098361825223 |
| 18 | 5477225574409 |
| 19 | 14139412282687 |
| 20 | 314896807700437 |
| 21 | 412286308285783 |
| 22 | 3147904051904219 |
| 23 | 9055381813816577 |
| 24 | 311447546136054827 |
| 25 | 282841298257395573 |