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 | 7 |
| 2 | 49 |
| 3 | 240 |
| 4 | 1112 |
| 5 | 4792 |
| 6 | 20129 |
| 7 | 82807 |
| 8 | 337209 |
| 9 | 1363568 |
| 10 | 5492088 |
| 11 | 22063552 |
| 12 | 88498657 |
| 13 | 354619079 |
| 14 | 1420087393 |
| 15 | 5684504432 |
| 16 | 22748788280 |
| 17 | 91023096360 |
| 18 | 364165082465 |
| 19 | 1456849628855 |
| 20 | 5827892187561 |
| 21 | 23312857086192 |
| 22 | 93254793361944 |