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 | 305778479 |
| 2 | 306748679 |
| 3 | 1067113823 |
| 4 | 2837965199 |
| 5 | 4533292679 |
| 6 | 8345667119 |
| 7 | 12120181079 |
| 8 | 12148200719 |
| 9 | 13765945199 |
| 10 | 13949792159 |
| 11 | 14404208279 |
| 12 | 16237621679 |
| 13 | 18147459479 |
| 14 | 18780179879 |
| 15 | 19542401339 |
| 16 | 19662679679 |
| 17 | 20045705819 |
| 18 | 20383699199 |
| 19 | 22383737879 |
| 20 | 24039703967 |
| 21 | 24405534719 |