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 | 91 |
| 1 | 713 |
| 2 | 2331 |
| 3 | 3737 |
| 4 | 37101 |
| 5 | 383149 |
| 6 | 1329473 |
| 7 | 10912197 |
| 8 | 328312853 |
| 9 | 1129846623 |
| 10 | 3735159117 |
| 11 | 31245053039 |
| 12 | 173977184859 |
| 13 | 3293176308321 |
| 14 | 319269241788861 |
| 15 | 371325123869195203 |
| 16 | 1278647733810375857 |
| 17 | 1665622037676698019 |
| 18 | 31742715741254857303 |
| 19 | 56627509560552923867 |