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 | 10153331 |
| 2 | 20326464 |
| 3 | 30559685 |
| 4 | 40871218 |
| 5 | 51193539 |
| 6 | 63296870 |
| 7 | 75460003 |
| 8 | 87623334 |
| 9 | 99816467 |
| 10 | 112128400 |
| 11 | 124441719 |
| 12 | 139544852 |
| 13 | 154778073 |
| 14 | 170089706 |
| 15 | 185421637 |
| 16 | 200754756 |
| 17 | 216907889 |
| 18 | 233061220 |
| 19 | 249234353 |
| 20 | 265565884 |
| 21 | 281897715 |