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 | 11 |
| 2 | 9853497737 |
| 3 | 21956291867 |
| 4 | 22741837817 |
| 5 | 33081664151 |
| 6 | 83122625471 |
| 7 | 164444511587 |
| 8 | 179590045487 |
| 9 | 217999764107 |
| 10 | 231255798857 |
| 11 | 242360943257 |
| 12 | 294920291201 |
| 13 | 573459229151 |
| 14 | 663903555851 |
| 15 | 666413245007 |
| 16 | 688697679401 |
| 17 | 696391309697 |
| 18 | 730121110331 |
| 19 | 867132039857 |
| 20 | 974275568237 |
| 21 | 976136848847 |
| 22 | 1002263588297 |