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 | 448 |
| 2 | 19675 |
| 3 | 1067299 |
| 4 | 56939585 |
| 5 | 3043629267 |
| 6 | 162794962814 |
| 7 | 8710922742428 |
| 8 | 465220677212678 |
| 9 | 24888824486410340 |
| 10 | 1329636795738857739 |
| 11 | 71103770288879123298 |
| 12 | 3799851842800067248447 |
| 13 | 203151084678069461627099 |