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 | 3 |
| 2 | 757 |
| 3 | 4161 |
| 4 | 117993 |
| 5 | 46873 |
| 6 | 2987713 |
| 7 | 262657 |
| 8 | 11394001 |
| 9 | 4829007 |
| 10 | 34018057 |
| 11 | 2987713 |
| 12 | 481912257 |
| 13 | 7532281 |
| 14 | 191116801 |
| 15 | 191116801 |
| 16 | 887533473 |
| 17 | 34018057 |
| 18 | 3518803081 |
| 19 | 64008001 |
| 20 | 5489105833 |
| 21 | 1073774593 |
| 22 | 2176828993 |
| 23 | 191116801 |
| 24 | 46656216001 |
| 25 | 887533473 |
| 26 | 5489105833 |