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 | 16 |
| 2 | 384 |
| 3 | 6144 |
| 4 | 81920 |
| 5 | 983040 |
| 6 | 11010048 |
| 7 | 117440512 |
| 8 | 1207959552 |
| 9 | 12079595520 |
| 10 | 118111600640 |
| 11 | 1133871366144 |
| 12 | 10720238370816 |
| 13 | 100055558127616 |
| 14 | 923589767331840 |
| 15 | 8444249301319680 |
| 16 | 76561193665298432 |
| 17 | 689050742987685888 |