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 | 0 |
| 2 | 1 |
| 3 | 484 |
| 4 | 1156 |
| 5 | 2116 |
| 6 | 4900 |
| 7 | 16900 |
| 8 | 30625 |
| 9 | 41209 |
| 10 | 765625 |
| 11 | 12027024 |
| 12 | 45346756 |
| 13 | 94303521 |
| 14 | 1188939361 |
| 15 | 2144430864 |
| 16 | 3475809936 |
| 17 | 6168531600 |
| 18 | 26159180644 |
| 19 | 211618400400 |
| 20 | 483560298225 |
| 21 | 999898002601 |
| 22 | 1722945012100 |
| 23 | 3559421809449 |
| 24 | 15912878919025 |
| 25 | 19806300482329 |
| 26 | 50911350177961 |