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) |
|---|---|
| 0 | 1 |
| 1 | 177147 |
| 2 | 48828125 |
| 3 | 1977326743 |
| 4 | 31381059609 |
| 5 | 285311670611 |
| 6 | 1792160394037 |
| 7 | 8649755859375 |
| 8 | 34271896307633 |
| 9 | 116490258898219 |
| 10 | 350277500542221 |
| 11 | 952809757913927 |
| 12 | 2384185791015625 |
| 13 | 5559060566555523 |
| 14 | 12200509765705829 |
| 15 | 25408476896404831 |
| 16 | 50542106513726817 |
| 17 | 96549157373046875 |