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 | 243 |
| 2 | 11664 |
| 3 | 132236 |
| 4 | 800309 |
| 5 | 3607078 |
| 6 | 13831334 |
| 7 | 48166179 |
| 8 | 158023549 |
| 9 | 497580715 |
| 10 | 1514359253 |
| 11 | 4458436636 |
| 12 | 12678906115 |
| 13 | 34773215421 |
| 14 | 91905020703 |
| 15 | 234118674737 |
| 16 | 575345712656 |
| 17 | 1365918264285 |
| 18 | 3137981575530 |
| 19 | 6988511558308 |
| 20 | 15115188591949 |