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 | 19 |
| 2 | 643 |
| 3 | 1531 |
| 4 | 5179 |
| 5 | 17491 |
| 6 | 41467 |
| 7 | 65851 |
| 8 | 98299 |
| 9 | 862483 |
| 10 | 1316923 |
| 11 | 2044411 |
| 12 | 3779131 |
| 13 | 4214779 |
| 14 | 4929091 |
| 15 | 6899899 |
| 16 | 8589859 |
| 17 | 9336403 |
| 18 | 12754579 |
| 19 | 16919251 |
| 20 | 18085699 |
| 21 | 26225443 |
| 22 | 30233083 |
| 23 | 48009019 |
| 24 | 56463283 |
| 25 | 70180963 |
| 26 | 74691259 |
| 27 | 82630819 |