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 | 1 |
| 1 | 24 |
| 2 | 576 |
| 3 | 13824 |
| 4 | 331776 |
| 5 | 7962624 |
| 6 | 191102976 |
| 7 | 4586471424 |
| 8 | 110075314176 |
| 9 | 2641807540224 |
| 10 | 63403380965376 |
| 11 | 1521681143169024 |
| 12 | 36520347436056576 |
| 13 | 876488338465357824 |
| 14 | 21035720123168587776 |
| 15 | 504857282956046106624 |
| 16 | 12116574790945106558976 |
| 17 | 290797794982682557415424 |
| 18 | 6979147079584381377970176 |
| 19 | 167499529910025153071284224 |
| 20 | 4019988717840603673710821376 |