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 | 1 |
| 1 | 1 |
| 2 | 17 |
| 3 | 122 |
| 4 | 513 |
| 5 | 1563 |
| 6 | 3889 |
| 7 | 8404 |
| 8 | 16385 |
| 9 | 29525 |
| 10 | 50001 |
| 11 | 80526 |
| 12 | 124417 |
| 13 | 185647 |
| 14 | 268913 |
| 15 | 379688 |
| 16 | 524289 |
| 17 | 709929 |
| 18 | 944785 |
| 19 | 1238050 |
| 20 | 1600001 |
| 21 | 2042051 |
| 22 | 2576817 |
| 23 | 3218172 |
| 24 | 3981313 |
| 25 | 4882813 |
| 26 | 5940689 |
| 27 | 7174454 |
| 28 | 8605185 |
| 29 | 10255575 |
| 30 | 12150001 |
| 31 | 14314576 |
| 32 | 16777217 |