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 | 2 |
| 2 | 7 |
| 3 | 23 |
| 4 | 167 |
| 5 | 439 |
| 6 | 3023 |
| 7 | 7919 |
| 8 | 54287 |
| 9 | 974167 |
| 10 | 2550407 |
| 11 | 32522920134767 |
| 12 | 3372041405099481407 |
| 13 | 9839618880490124200692486211717007 |
| 14 | 724995932728680612729658820311719934835368079 |