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 | 1 |
| 2 | 41 |
| 3 | 1201 |
| 4 | 36281 |
| 5 | 1094401 |
| 6 | 33014921 |
| 7 | 995960401 |
| 8 | 30045123161 |
| 9 | 906370788001 |
| 10 | 27342474236201 |
| 11 | 824840018262001 |
| 12 | 24882936703189241 |
| 13 | 750643185668251201 |
| 14 | 22644641945255809481 |
| 15 | 683120580615598976401 |
| 16 | 20607688511425541428121 |
| 17 | 621671836326816125138401 |