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) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 6 |
| 7 | 7 |
| 8 | 8 |
| 9 | 9 |
| 10 | 36 |
| 11 | 128 |
| 12 | 175 |
| 13 | 384 |
| 14 | 735 |
| 15 | 1296 |
| 16 | 2916 |
| 17 | 18432 |
| 18 | 34992 |
| 19 | 82944 |
| 20 | 139968 |
| 21 | 442368 |
| 22 | 2333772 |
| 23 | 4128768 |
| 24 | 9289728 |
| 25 | 12192768 |
| 26 | 13226976 |
| 27 | 13395375 |
| 28 | 13436928 |
| 29 | 27869184 |
| 30 | 49787136 |
| 31 | 376233984 |
| 32 | 429981696 |
| 33 | 1269789696 |
| 34 | 2633637888 |
| 35 | 4161798144 |
| 36 | 16728477696 |
| 37 | 19999187712 |
| 38 | 41479796736 |
| 39 | 72236924928 |