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 | 324 |
| 2 | 1156 |
| 3 | 12544 |
| 4 | 21904 |
| 5 | 81796 |
| 6 | 116964 |
| 7 | 291600 |
| 8 | 379456 |
| 9 | 763876 |
| 10 | 940900 |
| 11 | 1658944 |
| 12 | 1971216 |
| 13 | 3175524 |
| 14 | 3678724 |
| 15 | 5550736 |
| 16 | 6310144 |
| 17 | 9060100 |
| 18 | 10150596 |
| 19 | 14017536 |
| 20 | 15523600 |
| 21 | 20775364 |
| 22 | 22791076 |
| 23 | 29724304 |
| 24 | 32353344 |
| 25 | 41293476 |
| 26 | 44649124 |
| 27 | 55950400 |
| 28 | 60155536 |
| 29 | 74200996 |