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 | 5426124 |
| 2 | 8139186 |
| 3 | 20017998 |
| 4 | 21999978 |
| 5 | 26690664 |
| 6 | 26888862 |
| 7 | 29333304 |
| 8 | 49821684 |
| 9 | 73267326 |
| 10 | 97689768 |
| 11 | 98666568 |
| 12 | 146534652 |
| 13 | 147999852 |
| 14 | 220197978 |
| 15 | 271333062 |
| 16 | 274019262 |
| 17 | 320221902 |
| 18 | 403696293 |
| 19 | 471535064 |
| 20 | 489372884 |
| 21 | 516019504 |
| 22 | 518221704 |