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 | 17 |
| 1 | 579 |
| 2 | 19703 |
| 3 | 670481 |
| 4 | 22816057 |
| 5 | 776416419 |
| 6 | 26420974303 |
| 7 | 899089542721 |
| 8 | 30595465426817 |
| 9 | 1041144914054499 |
| 10 | 35429522543279783 |
| 11 | 1205644911385567121 |
| 12 | 41027356509652561897 |
| 13 | 1396135766239572671619 |
| 14 | 47509643408655123396943 |
| 15 | 1616724011660513768167681 |