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 | 23 |
| 3 | 87 |
| 4 | 157 |
| 5 | 1523 |
| 6 | 3445551 |
| 7 | 26620870 |
| 8 | 30512347 |
| 9 | 72713283 |
| 10 | 344661698 |
| 11 | 1129330411 |
| 12 | 3886591581 |
| 13 | 5085084202 |
| 14 | 11916345303 |
| 15 | 15510679381 |