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 | 181258 |
| 2 | 552519 |
| 3 | 1972133 |
| 4 | 4445107 |
| 5 | 10864643 |
| 6 | 31214741 |
| 7 | 59472599 |
| 8 | 127396699 |
| 9 | 240776801 |
| 10 | 381348901 |
| 11 | 590182759 |
| 12 | 979749101 |
| 13 | 1625329443 |
| 14 | 2354069543 |
| 15 | 3557186207 |
| 16 | 5132070551 |
| 17 | 6786946651 |
| 18 | 9149078751 |
| 19 | 12243523093 |
| 20 | 16477457435 |