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 | 7 |
| 2 | 119 |
| 3 | 3122 |
| 4 | 108031 |
| 5 | 4575543 |
| 6 | 227428166 |
| 7 | 12920344256 |
| 8 | 823981508700 |
| 9 | 58224680389435 |
| 10 | 4513525625433076 |
| 11 | 380801193456921958 |
| 12 | 34738963053424196609 |
| 13 | 3407790141561016562022 |
| 14 | 357764735284328750251272 |