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 | 128 |
| 3 | 375 |
| 4 | 17505 |
| 5 | 165130 |
| 6 | 2652007 |
| 7 | 33180533 |
| 8 | 450926562 |
| 9 | 5905274893 |
| 10 | 77665021467 |