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 | 2217231104 |
| 2 | 6221622528 |
| 3 | 9644780288 |
| 4 | 12127073024 |
| 5 | 15377570560 |
| 6 | 15520617728 |
| 7 | 22426778880 |
| 8 | 25138541824 |
| 9 | 34766068480 |
| 10 | 43551357696 |
| 11 | 49424655104 |
| 12 | 56022543104 |
| 13 | 67513462016 |
| 14 | 84107119360 |
| 15 | 84889511168 |
| 16 | 90906475264 |
| 17 | 107642993920 |
| 18 | 156987452160 |
| 19 | 174347951360 |
| 20 | 175969792768 |