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 | 223 |
| 2 | 2104547 |
| 3 | 2403689 |
| 4 | 4268233 |
| 5 | 17620457 |
| 6 | 21848647 |
| 7 | 23487311 |
| 8 | 29205821 |
| 9 | 42889591 |
| 10 | 43458859 |
| 11 | 47899487 |
| 12 | 48309017 |
| 13 | 54666847 |
| 14 | 61227457 |
| 15 | 73038689 |
| 16 | 81742547 |
| 17 | 83574457 |
| 18 | 85031153 |
| 19 | 87285403 |
| 20 | 95017003 |
| 21 | 100339517 |
| 22 | 103136867 |