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 | 512821 |
| 2 | 22240681 |
| 3 | 26486461 |
| 4 | 99597961 |
| 5 | 593009341 |
| 6 | 1021157551 |
| 7 | 1041298441 |
| 8 | 1281196561 |
| 9 | 1349985001 |
| 10 | 1426148011 |
| 11 | 1660907431 |
| 12 | 1894757971 |
| 13 | 2544774541 |
| 14 | 3590232241 |
| 15 | 3958824871 |
| 16 | 4012463281 |
| 17 | 4219580191 |
| 18 | 4363137241 |
| 19 | 6482599411 |
| 20 | 7178651971 |
| 21 | 8051820421 |
| 22 | 8417194381 |