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 | 43 |
| 2 | 1806 |
| 3 | 75852 |
| 4 | 3185784 |
| 5 | 133802928 |
| 6 | 5619722976 |
| 7 | 236028364992 |
| 8 | 9913191329664 |
| 9 | 416354035844985 |
| 10 | 17486869505451444 |
| 11 | 734448519227368659 |
| 12 | 30846837807482620140 |
| 13 | 1295567187911461777284 |
| 14 | 54413821892163447364896 |