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) |
|---|---|
| 0 | 262144 |
| 1 | 68719476736 |
| 2 | 10578455953408 |
| 3 | 262144000000000 |
| 4 | 2779905883635712 |
| 5 | 18014398509481984 |
| 6 | 84590643846578176 |
| 7 | 316478381828866048 |
| 8 | 1000000000000000000 |
| 9 | 2773078757450186752 |
| 10 | 6930988311686938624 |
| 11 | 15916595351771938816 |
| 12 | 34068690316840665088 |
| 13 | 68719476736000000000 |