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 | 1 |
| 2 | 32768 |
| 3 | 14348907 |
| 4 | 1073741824 |
| 5 | 30517578125 |
| 6 | 470184984576 |
| 7 | 4747561509943 |
| 8 | 35184372088832 |
| 9 | 205891132094649 |
| 10 | 1000000000000000 |
| 11 | 4177248169415651 |
| 12 | 15407021574586368 |
| 13 | 51185893014090757 |
| 14 | 155568095557812224 |