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 | 400948369 |
| 2 | 473838319 |
| 3 | 583946599 |
| 4 | 678953059 |
| 5 | 816604199 |
| 6 | 972598819 |
| 7 | 1136526949 |
| 8 | 1466715139 |
| 9 | 1475790529 |
| 10 | 1499794999 |
| 11 | 1502149559 |
| 12 | 1610895679 |
| 13 | 1643313869 |
| 14 | 1673057219 |
| 15 | 1686181579 |
| 16 | 1845792019 |
| 17 | 1867046639 |
| 18 | 1907478889 |
| 19 | 1992202439 |
| 20 | 2011077869 |
| 21 | 2030490479 |
| 22 | 2207714969 |