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 | 16 |
| 2 | 256 |
| 3 | 324 |
| 4 | 828 |
| 5 | 1794 |
| 6 | 4104 |
| 7 | 9912 |
| 8 | 21976 |
| 9 | 52560 |
| 10 | 121264 |
| 11 | 279930 |
| 12 | 662256 |
| 13 | 1518514 |
| 14 | 3571988 |
| 15 | 8299060 |
| 16 | 19262480 |
| 17 | 45164520 |
| 18 | 104532130 |
| 19 | 244409310 |
| 20 | 568980936 |
| 21 | 1322673264 |
| 22 | 3089796934 |
| 23 | 7178968320 |
| 24 | 16741713920 |
| 25 | 38997040062 |
| 26 | 90747250860 |