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 | 0 |
| 1 | 2048 |
| 2 | 4194304 |
| 3 | 362797056 |
| 4 | 8589934592 |
| 5 | 100000000000 |
| 6 | 743008370688 |
| 7 | 4049565169664 |
| 8 | 17592186044416 |
| 9 | 64268410079232 |
| 10 | 204800000000000 |
| 11 | 584318301411328 |
| 12 | 1521681143169024 |
| 13 | 3670344486987776 |
| 14 | 8293509467471872 |
| 15 | 17714700000000000 |
| 16 | 36028797018963968 |
| 17 | 70188843638032384 |