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 | 126217 |
| 2 | 68154001 |
| 3 | 1828377001 |
| 4 | 3713287801 |
| 5 | 27388362001 |
| 6 | 32071969801 |
| 7 | 63593140801 |
| 8 | 113267783377 |
| 9 | 122666876401 |
| 10 | 193403531401 |
| 11 | 227959335001 |
| 12 | 246682590001 |
| 13 | 910355497801 |
| 14 | 1389020532001 |
| 15 | 4790779641001 |
| 16 | 5367929037001 |
| 17 | 6486222838801 |
| 18 | 24572944746001 |