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) |
|---|---|
| 2 | 1 |
| 3 | 7 |
| 4 | 66 |
| 5 | 916 |
| 6 | 16816 |
| 7 | 373630 |
| 8 | 9727010 |
| 9 | 289374391 |
| 10 | 9677492899 |
| 11 | 359305262944 |
| 12 | 14663732271505 |
| 13 | 652463078546373 |
| 14 | 31435363120551013 |
| 15 | 1630394318463367718 |
| 16 | 90570555840053284171 |
| 17 | 5365261686125108336540 |
| 18 | 337616338011820295406352 |
| 19 | 22490263897737210321234701 |
| 20 | 1581153614004788257326876764 |