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 | 702 |
| 1 | 978 |
| 2 | 990 |
| 3 | 1818 |
| 4 | 2160 |
| 5 | 5280 |
| 6 | 12864 |
| 7 | 21680 |
| 8 | 28912 |
| 9 | 31848 |
| 10 | 47832 |
| 11 | 71808 |
| 12 | 148512 |
| 13 | 359520 |
| 14 | 946848 |
| 15 | 1895712 |
| 16 | 4539360 |
| 17 | 12180336 |
| 18 | 23781648 |
| 19 | 44267568 |
| 20 | 76111632 |
| 21 | 139130668 |
| 22 | 104348008 |
| 23 | 92030552 |
| 24 | 80526748 |
| 25 | 62286692 |
| 26 | 55099864 |
| 27 | 51042536 |
| 28 | 47249404 |
| 29 | 35492780 |
| 30 | 39042100 |